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Author SHA1 Message Date
dudaodong
4c5524354c doc: normalize documents 2023-01-13 14:36:33 +08:00
dudaodong
2c6e9a3fb9 doc: format document 2023-01-13 11:01:22 +08:00
dudaodong
5f2c3edff4 doc: format document 2023-01-13 10:57:40 +08:00
dudaodong
b422d98702 doc: format document 2023-01-13 10:48:21 +08:00
dudaodong
6f27e0bfbf doc: format document 2023-01-13 10:47:47 +08:00
dudaodong
ce3b6b461e doc: format document 2023-01-13 10:43:16 +08:00
dudaodong
0d6ad4f0d2 doc: format document 2023-01-13 10:41:47 +08:00
dudaodong
c875a7f8b8 doc: format document 2023-01-13 10:39:39 +08:00
dudaodong
0c62d117a1 doc: format document 2023-01-13 10:12:37 +08:00
dudaodong
c260ce493d doc: normalize documents 2023-01-12 15:44:34 +08:00
dudaodong
9ffe96d3ef update readme file 2023-01-12 11:32:43 +08:00
dudaodong
d4bba76dc8 fix: fix ExampleSchedule failed 2023-01-09 11:25:14 +08:00
dudaodong
adaa3ebc43 Merge branch 'main' into v2 2023-01-09 11:16:13 +08:00
dudaodong
61d38ae3b8 doc: update doc for algorithm package 2023-01-09 11:15:25 +08:00
dudaodong
c85d910044 add playground demo 2023-01-09 11:02:41 +08:00
33 changed files with 4324 additions and 3281 deletions

View File

@@ -1,5 +1,5 @@
<div align=center>
<a href="https://uvdream.github.io/lancet-docs/en/"><img src="./logo.png" width="200" height="200"/></a>
<img src="./logo.png" width="200" height="200"/>
<br/>
@@ -113,6 +113,7 @@ import "github.com/duke-git/lancet/v2/algorithm"
[[play](https://go.dev/play/p/Anozfr8ZLH3)]
- **<big>LinearSearch</big>** : returns the index of target in slice base on equal function.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LinearSearch)]
[[play](https://go.dev/play/p/IsS7rgn5s3x)]
- **<big>LRUCache</big>** : implements memory cache with lru algorithm.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LRUCache)]
[[play](https://go.dev/play/p/-EZjgOURufP)]
@@ -127,24 +128,34 @@ import "github.com/duke-git/lancet/v2/concurrency"
- **<big>NewChannel</big>** : create a Channel pointer instance.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#NewChannel)]
[[play](https://go.dev/play/p/7aB4KyMMp9A)]
- **<big>Bridge</big>** : link multiply channels into one channel.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/Bridge.md#NewChannel)]
[[play](https://go.dev/play/p/qmWSy1NVF-Y)]
- **<big>FanIn</big>** : merge multiple channels into one channel.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#FanIn)]
[[play](https://go.dev/play/p/2VYFMexEvTm)]
- **<big>Generate</big>** : creates a channel, then put values into the channel.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Generate)]
[[play](https://go.dev/play/p/7aB4KyMMp9A)]
- **<big>Or</big>** : read one or more channels into one channel, will close when any readin channel is closed.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Or)]
[[play](https://go.dev/play/p/Wqz9rwioPww)]
- **<big>OrDone</big>** : read a channel into another channel, will close until cancel context.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#OrDone)]
[[play](https://go.dev/play/p/lm_GoS6aDjo)]
- **<big>Repeat</big>** : create channel, put values into the channel repeatly until cancel the context.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Repeat)]
[[play](https://go.dev/play/p/k5N_ALVmYjE)]
- **<big>RepeatFn</big>** : create a channel, excutes fn repeatly, and put the result into the channel, until close context.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#RepeatFn)]
[[play](https://go.dev/play/p/4J1zAWttP85)]
- **<big>Take</big>** : create a channel whose values are taken from another channel with limit number.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Take)]
[[play](https://go.dev/play/p/9Utt-1pDr2J)]
- **<big>Tee</big>** : split one chanel into two channels, until cancel the context.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Tee)]
[[play](https://go.dev/play/p/3TQPKnCirrP)]
### 3. Condition package contains some functions for conditional judgment. eg. And, Or, TernaryOperator...
@@ -556,8 +567,10 @@ import "github.com/duke-git/lancet/v2/function"
[[play](https://go.dev/play/p/0HqUDIFZ3IL)]
- **<big>CurryFn</big>** : make a curry function.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function.md#CurryFn)]
[[play](https://go.dev/play/p/5HopfDwANKX)]
- **<big>Compose</big>** : compose the functions from right to left.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function.md#Compose)]
[[play](https://go.dev/play/p/KKfugD4PKYF)]
- **<big>Delay</big>** : call the function after delayed time.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function.md#Delay)]
[[play](https://go.dev/play/p/Ivtc2ZE-Tye)]
@@ -572,6 +585,8 @@ import "github.com/duke-git/lancet/v2/function"
[[play](https://go.dev/play/p/mPdUVvj6HD6)]
- **<big>Watcher</big>** : Watcher is used for record code excution time. can start/stop/reset the watch timer. get the elapsed time of function execution.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function.md#Watcher)]
[[play](https://go.dev/play/p/l2yrOpCLd1I)]
### 11. Maputil package includes some functions to manipulate map.
@@ -640,6 +655,7 @@ import "github.com/duke-git/lancet/v2/mathutil"
[[play](https://go.dev/play/p/N9qgYg_Ho6f)]
- **<big>Percent</big>** : calculate the percentage of value to total.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Percent)]
[[play](https://go.dev/play/p/QQM9B13coSP)]
- **<big>RoundToFloat</big>** : round up to n decimal places for float64.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#RoundToFloat)]
[[play](https://go.dev/play/p/ghyb528JRJL)]
@@ -1000,6 +1016,7 @@ import "github.com/duke-git/lancet/v2/strutil"
[[play](https://go.dev/play/p/Us-ySSbWh-3)]
- **<big>Substring</big>** : returns a substring of the specific length starting at the specific offset position.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Substring)]
[[play](https://go.dev/play/p/q3sM6ehnPDp)]
- **<big>Wrap</big>** : wrap a string with given string.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Wrap)]
[[play](https://go.dev/play/p/KoZOlZDDt9y)]

View File

@@ -1,5 +1,5 @@
<div align=center>
<a href="https://uvdream.github.io/lancet-docs/"><img src="./logo.png" width="200" height="200"/><a/>
<img src="./logo.png" width="200" height="200"/>
<br/>
@@ -112,6 +112,7 @@ import "github.com/duke-git/lancet/v2/algorithm"
[[play](https://go.dev/play/p/Anozfr8ZLH3)]
- **<big>LinearSearch</big>** : 基于传入的相等函数返回切片中目标值的索引。(线性查找)
[[doc](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LinearSearch)]
[[play](https://go.dev/play/p/IsS7rgn5s3x)]
- **<big>LRUCache</big>** : 应用 lru 算法实现内存缓存.
[[doc](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LRUCache)]
[[play](https://go.dev/play/p/-EZjgOURufP)]
@@ -126,24 +127,34 @@ import "github.com/duke-git/lancet/v2/concurrency"
- **<big>NewChannel</big>** : 返回一个 Channel 指针实例。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#NewChannel)]
[[play](https://go.dev/play/p/7aB4KyMMp9A)]
- **<big>Bridge</big>** : 将多个 channel 链接到一个 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/Bridge.md#NewChannel)]
[[play](https://go.dev/play/p/qmWSy1NVF-Y)]
- **<big>FanIn</big>** : 将多个 channel 合并为一个 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#FanIn)]
[[play](https://go.dev/play/p/2VYFMexEvTm)]
- **<big>Generate</big>** : 根据传入的值,生成 channel。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Generate)]
[[play](https://go.dev/play/p/7aB4KyMMp9A)]
- **<big>Or</big>** : 将一个或多个 channel 读取到一个 channel 中,当任何读取 channel 关闭时将结束读取。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Or)]
[[play](https://go.dev/play/p/Wqz9rwioPww)]
- **<big>OrDone</big>** : 将一个 channel 读入另一个 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#OrDone)]
[[play](https://go.dev/play/p/lm_GoS6aDjo)]
- **<big>Repeat</big>** : 返回一个 channel将参数`values`重复放入 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Repeat)]
[[play](https://go.dev/play/p/k5N_ALVmYjE)]
- **<big>RepeatFn</big>** : 返回一个 channel重复执行函数 fn并将结果放入返回的 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#RepeatFn)]
[[play](https://go.dev/play/p/4J1zAWttP85)]
- **<big>Take</big>** : 返回一个 channel其值从另一个 channel 获取,直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Take)]
[[play](https://go.dev/play/p/9Utt-1pDr2J)]
- **<big>Tee</big>** : 将一个 channel 分成两个 channel直到取消上下文。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Tee)]
[[play](https://go.dev/play/p/3TQPKnCirrP)]
### 3. condition 包含一些用于条件判断的函数。
@@ -559,8 +570,10 @@ import "github.com/duke-git/lancet/v2/function"
[[play](https://go.dev/play/p/0HqUDIFZ3IL)]
- **<big>CurryFn</big>** : 创建柯里化函数。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#CurryFn)]
[[play](https://go.dev/play/p/5HopfDwANKX)]
- **<big>Compose</big>** : 从右至左组合函数列表fnList返回组合后的函数。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Compose)]
[[play](https://go.dev/play/p/KKfugD4PKYF)]
- **<big>Delay</big>** : 延迟delay时间后调用函数。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Delay)]
[[play](https://go.dev/play/p/Ivtc2ZE-Tye)]
@@ -575,6 +588,7 @@ import "github.com/duke-git/lancet/v2/function"
[[play](https://go.dev/play/p/mPdUVvj6HD6)]
- **<big>Watcher</big>** : Watcher用于记录代码执行时间。可以启动/停止/重置手表定时器。获取函数执行的时间。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Watcher)]
[[play](https://go.dev/play/p/l2yrOpCLd1I)]
### 11. maputil 包括一些操作 map 的函数.
@@ -644,6 +658,7 @@ import "github.com/duke-git/lancet/v2/mathutil"
[[play](https://go.dev/play/p/N9qgYg_Ho6f)]
- **<big>Percent</big>** : 计算百分比,可以指定保留 n 位小数。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Percent)]
[[play](https://go.dev/play/p/QQM9B13coSP)]
- **<big>RoundToFloat</big>** : 四舍五入,保留 n 位小数,返回 float64。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#RoundToFloat)]
[[play](https://go.dev/play/p/ghyb528JRJL)]
@@ -1010,6 +1025,7 @@ import "github.com/duke-git/lancet/v2/strutil"
[[play](https://go.dev/play/p/Us-ySSbWh-3)]
- **<big>Substring</big>** : 根据指定的位置和长度截取子字符串。
[[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Substring)]
[[play](https://go.dev/play/p/q3sM6ehnPDp)]
- **<big>Wrap</big>** : 用给定字符包裹传入的字符串
[[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Wrap)]
[[play](https://go.dev/play/p/KoZOlZDDt9y)]
@@ -1160,7 +1176,6 @@ import "github.com/duke-git/lancet/v2/xerror"
[[doc](https://github.com/duke-git/lancet/blob/main/docs/xerror_zh-CN.md#Unwrap)]
[[play](https://go.dev/play/p/w84d7Mb3Afk)]
- [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/xerror_zh-CN.md#Unwrap)
## 如何贡献代码

View File

@@ -10,7 +10,7 @@ import "github.com/duke-git/lancet/v2/lancetconstraints"
// LinearSearch return the index of target in slice base on equal function.
// If not found return -1
// Play: Todo
// Play: https://go.dev/play/p/IsS7rgn5s3x
func LinearSearch[T any](slice []T, target T, equal func(a, b T) bool) int {
for i, v := range slice {
if equal(v, target) {

View File

@@ -20,7 +20,7 @@ func NewChannel[T any]() *Channel[T] {
}
// Generate creates channel, then put values into the channel.
// Play: Todo
// Play: https://go.dev/play/p/7aB4KyMMp9A
func (c *Channel[T]) Generate(ctx context.Context, values ...T) <-chan T {
dataStream := make(chan T)
@@ -40,7 +40,7 @@ func (c *Channel[T]) Generate(ctx context.Context, values ...T) <-chan T {
}
// Repeat create channel, put values into the channel repeatly until cancel the context.
// Play: Todo
// Play: https://go.dev/play/p/k5N_ALVmYjE
func (c *Channel[T]) Repeat(ctx context.Context, values ...T) <-chan T {
dataStream := make(chan T)
@@ -61,7 +61,7 @@ func (c *Channel[T]) Repeat(ctx context.Context, values ...T) <-chan T {
// RepeatFn create a channel, excutes fn repeatly, and put the result into the channel
// until close context.
// Play: Todo
// Play: https://go.dev/play/p/4J1zAWttP85
func (c *Channel[T]) RepeatFn(ctx context.Context, fn func() T) <-chan T {
dataStream := make(chan T)
@@ -79,7 +79,7 @@ func (c *Channel[T]) RepeatFn(ctx context.Context, fn func() T) <-chan T {
}
// Take create a channel whose values are taken from another channel with limit number.
// Play: Todo
// Play: https://go.dev/play/p/9Utt-1pDr2J
func (c *Channel[T]) Take(ctx context.Context, valueStream <-chan T, number int) <-chan T {
takeStream := make(chan T)
@@ -99,7 +99,7 @@ func (c *Channel[T]) Take(ctx context.Context, valueStream <-chan T, number int)
}
// FanIn merge multiple channels into one channel.
// Play: Todo
// Play: https://go.dev/play/p/2VYFMexEvTm
func (c *Channel[T]) FanIn(ctx context.Context, channels ...<-chan T) <-chan T {
out := make(chan T)
@@ -127,7 +127,7 @@ func (c *Channel[T]) FanIn(ctx context.Context, channels ...<-chan T) <-chan T {
}
// Tee split one chanel into two channels, until cancel the context.
// Play: Todo
// Play: https://go.dev/play/p/3TQPKnCirrP
func (c *Channel[T]) Tee(ctx context.Context, in <-chan T) (<-chan T, <-chan T) {
out1 := make(chan T)
out2 := make(chan T)
@@ -154,7 +154,7 @@ func (c *Channel[T]) Tee(ctx context.Context, in <-chan T) (<-chan T, <-chan T)
}
// Bridge link multiply channels into one channel.
// Play: Todo
// Play: https://go.dev/play/p/qmWSy1NVF-Y
func (c *Channel[T]) Bridge(ctx context.Context, chanStream <-chan <-chan T) <-chan T {
valStream := make(chan T)
@@ -186,7 +186,7 @@ func (c *Channel[T]) Bridge(ctx context.Context, chanStream <-chan <-chan T) <-c
}
// Or read one or more channels into one channel, will close when any readin channel is closed.
// Play: Todo
// Play: https://go.dev/play/p/Wqz9rwioPww
func (c *Channel[T]) Or(channels ...<-chan T) <-chan T {
switch len(channels) {
case 0:
@@ -220,7 +220,7 @@ func (c *Channel[T]) Or(channels ...<-chan T) <-chan T {
}
// OrDone read a channel into another channel, will close until cancel context.
// Play: Todo
// Play: https://go.dev/play/p/lm_GoS6aDjo
func (c *Channel[T]) OrDone(ctx context.Context, channel <-chan T) <-chan T {
valStream := make(chan T)

View File

@@ -1,17 +1,19 @@
# Algorithm
Package algorithm implements some basic algorithm. eg. sort, search.
<div STYLE="page-break-after: always;"></div>
## Source
- [https://github.com/duke-git/lancet/blob/main/algorithm/sort.go](https://github.com/duke-git/lancet/blob/main/algorithm/sort.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/search.go](https://github.com/duke-git/lancet/blob/main/algorithm/search.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go](https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/sort.go](https://github.com/duke-git/lancet/blob/main/algorithm/sort.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/search.go](https://github.com/duke-git/lancet/blob/main/algorithm/search.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go](https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go)
<div STYLE="page-break-after: always;"></div>
## Usage
```go
import (
"github.com/duke-git/lancet/v2/algorithm"
@@ -22,27 +24,25 @@ import (
## Index
- [BubbleSort](#BubbleSort)
- [InsertionSort](#InsertionSort)
- [SelectionSort](#SelectionSort)
- [ShellSort](#ShellSort)
- [QuickSort](#QuickSort)
- [HeapSort](#HeapSort)
- [MergeSort](#MergeSort)
- [CountSort](#CountSort)
- [BinarySearch](#BinarySearch)
- [BinaryIterativeSearch](#BinaryIterativeSearch)
- [LinearSearch](#LinearSearch)
- [LRUCache](#LRUCache)
- [BubbleSort](#BubbleSort)
- [InsertionSort](#InsertionSort)
- [SelectionSort](#SelectionSort)
- [ShellSort](#ShellSort)
- [QuickSort](#QuickSort)
- [HeapSort](#HeapSort)
- [MergeSort](#MergeSort)
- [CountSort](#CountSort)
- [BinarySearch](#BinarySearch)
- [BinaryIterativeSearch](#BinaryIterativeSearch)
- [LinearSearch](#LinearSearch)
- [LRUCache](#LRUCache)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="BubbleSort">BubbleSort</span>
<p>Sort slice with bubble sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -50,6 +50,7 @@ import (
```go
func BubbleSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -60,34 +61,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.BubbleSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.BubbleSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="InsertionSort">InsertionSort</span>
<p>Sort slice with insertion sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -95,6 +98,7 @@ func main() {
```go
func InsertionSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -105,54 +109,51 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
type people struct {
Name string
Age int
}
// PeopleAageComparator sort people slice by age field
type peopleAgeComparator struct{}
// Compare implements github.com/duke-git/lancet/lancetconstraints/constraints.go/Comparator
func (pc *peopleAgeComparator) Compare(v1 any, v2 any) int {
p1, _ := v1.(people)
p2, _ := v2.(people)
//ascending order
if p1.Age < p2.Age {
return -1
} else if p1.Age > p2.Age {
return 1
}
return 0
}
func main() {
type people struct {
Name string
Age int
}
// PeopleAageComparator sort people slice by age field
type peopleAgeComparator struct{}
// Compare implements github.com/duke-git/lancet/lancetconstraints/constraints.go/Comparator
func (pc *peopleAgeComparator) Compare(v1 any, v2 any) int {
p1, _ := v1.(people)
p2, _ := v2.(people)
//ascending order
if p1.Age < p2.Age {
return -1
} else if p1.Age > p2.Age {
return 1
}
return 0
//decending order
// if p1.Age > p2.Age {
// return -1
// } else if p1.Age < p2.Age {
// return 1
// }
}
var peoples = []people{
peoples := []people{
{Name: "a", Age: 20},
{Name: "b", Age: 10},
{Name: "c", Age: 17},
{Name: "d", Age: 8},
{Name: "e", Age: 28},
}
comparator := &peopleAgeComparator{}
algorithm.InsertionSort(peoples, comparator)
fmt.Println(peoples) //[{d 8} {b 10} {c 17} {a 20} {e 28}]
fmt.Println(peoples)
// Output:
// [{d 8} {b 10} {c 17} {a 20} {e 28}]
}
```
### <span id="SelectionSort">SelectionSort</span>
<p>Sort slice with selection sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -160,6 +161,7 @@ func main() {
```go
func SelectionSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -170,34 +172,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.SelectionSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.SelectionSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="ShellSort">ShellSort</span>
<p>Sort slice with shell sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -205,6 +209,7 @@ func main() {
```go
func ShellSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -215,34 +220,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.ShellSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.ShellSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="QuickSort">QuickSort</span>
<p>Sort slice with quick sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -250,6 +257,7 @@ func main() {
```go
func QuickSort[T any](slice []T comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -260,34 +268,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.QuickSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.QuickSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="HeapSort">HeapSort</span>
<p>Sort slice with heap sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -295,6 +305,7 @@ func main() {
```go
func HeapSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -305,34 +316,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.HeapSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.HeapSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="MergeSort">MergeSort</span>
<p>Sort slice with merge sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -340,6 +353,7 @@ func main() {
```go
func MergeSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
```go
@@ -350,33 +364,36 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.MergeSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.MergeSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="CountSort">CountSort</span>
<p>Sort slice with count sort algorithm. Param comparator should implements lancetconstraints.Comparator.</p>
<b>Signature:</b>
@@ -384,6 +401,7 @@ func main() {
```go
func CountSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
```
<b>Example:</b>
```go
@@ -394,34 +412,37 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
type intComparator struct{}
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
sortedSlice := algorithm.CountSort(intSlice, comparator)
fmt.Println(sortedSlice) //[]int{1, 2, 3, 4, 5, 6}
sortedNums := algorithm.CountSort(numbers, comparator)
fmt.Println(sortedNums)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="BinarySearch">BinarySearch</span>
<p>BinarySearch search for target within a sorted slice, recursive call itself. If a target is found, the index of the target is returned. Else the function return -1.</p>
<b>Signature:</b>
@@ -429,6 +450,7 @@ func main() {
```go
func BinarySearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
```
<b>Example:</b>
```go
@@ -439,35 +461,39 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
var sortedNumbers = []int{1, 2, 3, 4, 5, 6, 7, 8}
func main() {
numbers := []int{1, 2, 3, 4, 5, 6, 7, 8}
comparator := &intComparator{}
foundIndex := algorithm.BinarySearch(sortedNumbers, 5, 0, len(sortedNumbers)-1, comparator)
fmt.Println(foundIndex) //4
notFoundIndex := algorithm.BinarySearch(sortedNumbers, 9, 0, len(sortedNumbers)-1, comparator)
fmt.Println(notFoundIndex) //-1
result1 := algorithm.BinarySearch(numbers, 5, 0, len(numbers)-1, comparator)
result2 := algorithm.BinarySearch(numbers, 9, 0, len(numbers)-1, comparator)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 4
// -1
}
```
### <span id="BinaryIterativeSearch">BinaryIterativeSearch</span>
<p>BinaryIterativeSearch search for target within a sorted slice, recursive call itself. If a target is found, the index of the target is returned. Else the function return -1.</p>
<b>Signature:</b>
@@ -475,6 +501,7 @@ func main() {
```go
func BinaryIterativeSearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
```
<b>Example:</b>
```go
@@ -485,43 +512,47 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
var sortedNumbers = []int{1, 2, 3, 4, 5, 6, 7, 8}
func main() {
numbers := []int{1, 2, 3, 4, 5, 6, 7, 8}
comparator := &intComparator{}
foundIndex := algorithm.BinaryIterativeSearch(sortedNumbers, 5, 0, len(sortedNumbers)-1, comparator)
fmt.Println(foundIndex) //4
notFoundIndex := algorithm.BinaryIterativeSearch(sortedNumbers, 9, 0, len(sortedNumbers)-1, comparator)
fmt.Println(notFoundIndex) //-1
result1 := algorithm.BinaryIterativeSearch(numbers, 5, 0, len(numbers)-1, comparator)
result2 := algorithm.BinaryIterativeSearch(numbers, 9, 0, len(numbers)-1, comparator)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 4
// -1
}
```
### <span id="LinearSearch">LinearSearch</span>
<p>LinearSearch Simple linear search algorithm that iterates over all elements of an slice. If a target is found, the index of the target is returned. Else the function return -1.</p>
<p>return the index of target in slice base on equal function.If a target is found, the index of the target is returned. Else the function return -1.</p>
<b>Signature:</b>
```go
func LinearSearch[T any](slice []T, target T, comparator lancetconstraints.Comparator) int
func LinearSearch[T any](slice []T, target T, equal func(a, b T) bool) int
```
<b>Example:</b>
```go
@@ -533,35 +564,26 @@ import (
)
func main() {
type intComparator struct{}
numbers := []int{3, 4, 5, 3, 2, 1}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
equalFunc := func(a, b int) bool {
return a == b
}
intSlice := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
foundIndex := algorithm.LinearSearch(intSlice, 5, comparator)
fmt.Println(foundIndex) //2
result1 := algorithm.LinearSearch(numbers, 3, equalFunc)
result2 := algorithm.LinearSearch(numbers, 6, equalFunc)
notFoundIndex := algorithm.LinearSearch(sortedNumbers, 0, comparator)
fmt.Println(notFoundIndex) //-1
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0
// -1
}
```
### <span id="LRUCache">LRUCache</span>
<p>LRUCache implements mem cache with lru.</p>
<b>Signature:</b>
@@ -573,6 +595,7 @@ func (l *LRUCache[K, V]) Put(key K, value V)
func (l *LRUCache[K, V]) Delete(key K) bool
func (l *LRUCache[K, V]) Len() int
```
<b>Example:</b>
```go
@@ -588,14 +611,26 @@ func main() {
cache.Put(1, 1)
cache.Put(2, 2)
cache.Put(3, 3)
fmt.Println(cache.Len()) // 3
result1, ok1 := cache.Get(1)
result2, ok2 := cache.Get(2)
result3, ok3 := cache.Get(3)
v, ok := cache.Get(1)
fmt.Println(v, ok) // 1 true
fmt.Println(result1, ok1)
fmt.Println(result2, ok2)
fmt.Println(result3, ok3)
ok = cache.Delete(1)
fmt.Println(ok) // true
fmt.Println(cache.Len())
ok := cache.Delete(2)
fmt.Println(ok)
// Output:
// 1 true
// 2 true
// 0 false
// 2
// true
}
```
```

View File

@@ -1,17 +1,19 @@
# Algorithm
algorithm算法包实现一些基本算法sortsearchlrucache。
algorithm 算法包实现一些基本算法sortsearchlrucache。
<div STYLE="page-break-after: always;"></div>
## 源码
- [https://github.com/duke-git/lancet/blob/main/algorithm/sort.go](https://github.com/duke-git/lancet/blob/main/algorithm/sort.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/search.go](https://github.com/duke-git/lancet/blob/main/algorithm/search.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go](https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/sort.go](https://github.com/duke-git/lancet/blob/main/algorithm/sort.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/search.go](https://github.com/duke-git/lancet/blob/main/algorithm/search.go)
- [https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go](https://github.com/duke-git/lancet/blob/main/algorithm/lru_cache.go)
<div STYLE="page-break-after: always;"></div>
## 用法
```go
import (
"github.com/duke-git/lancet/v2/algorithm"
@@ -22,35 +24,34 @@ import (
## 目录
- [BubbleSort](#BubbleSort)
- [InsertionSort](#InsertionSort)
- [SelectionSort](#SelectionSort)
- [ShellSort](#ShellSort)
- [QuickSort](#QuickSort)
- [HeapSort](#HeapSort)
- [MergeSort](#MergeSort)
- [CountSort](#CountSort)
- [BinarySearch](#BinarySearch)
- [BinaryIterativeSearch](#BinaryIterativeSearch)
- [LinearSearch](#LinearSearch)
- [LRUCache](#LRUCache)
- [BubbleSort](#BubbleSort)
- [InsertionSort](#InsertionSort)
- [SelectionSort](#SelectionSort)
- [ShellSort](#ShellSort)
- [QuickSort](#QuickSort)
- [HeapSort](#HeapSort)
- [MergeSort](#MergeSort)
- [CountSort](#CountSort)
- [BinarySearch](#BinarySearch)
- [BinaryIterativeSearch](#BinaryIterativeSearch)
- [LinearSearch](#LinearSearch)
- [LRUCache](#LRUCache)
<div STYLE="page-break-after: always;"></div>
## 文档
### <span id="BubbleSort">BubbleSort</span>
<p>冒泡排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>冒泡排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func BubbleSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -60,42 +61,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.BubbleSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.BubbleSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="InsertionSort">InsertionSort</span>
<p>插入排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>插入排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func InsertionSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -105,62 +109,60 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
type people struct {
Name string
Age int
}
// PeopleAageComparator sort people slice by age field
type peopleAgeComparator struct{}
// Compare implements github.com/duke-git/lancet/lancetconstraints/constraints.go/Comparator
func (pc *peopleAgeComparator) Compare(v1 any, v2 any) int {
p1, _ := v1.(people)
p2, _ := v2.(people)
//ascending order
if p1.Age < p2.Age {
return -1
} else if p1.Age > p2.Age {
return 1
}
return 0
}
func main() {
type people struct {
Name string
Age int
}
// PeopleAageComparator sort people slice by age field
type peopleAgeComparator struct{}
// Compare implements github.com/duke-git/lancet/lancetconstraints/constraints.go/Comparator
func (pc *peopleAgeComparator) Compare(v1 any, v2 any) int {
p1, _ := v1.(people)
p2, _ := v2.(people)
//ascending order
if p1.Age < p2.Age {
return -1
} else if p1.Age > p2.Age {
return 1
}
return 0
//decending order
// if p1.Age > p2.Age {
// return -1
// } else if p1.Age < p2.Age {
// return 1
// }
}
var peoples = []people{
peoples := []people{
{Name: "a", Age: 20},
{Name: "b", Age: 10},
{Name: "c", Age: 17},
{Name: "d", Age: 8},
{Name: "e", Age: 28},
}
comparator := &peopleAgeComparator{}
algorithm.InsertionSort(peoples, comparator)
fmt.Println(intSlice) //[{d 8} {b 10} {c 17} {a 20} {e 28}]
fmt.Println(peoples)
// Output:
// [{d 8} {b 10} {c 17} {a 20} {e 28}]
}
```
### <span id="SelectionSort">SelectionSort</span>
<p>选择排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>选择排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func SelectionSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -170,42 +172,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.SelectionSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.SelectionSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="ShellSort">ShellSort</span>
<p>希尔排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>希尔排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func ShellSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -215,42 +220,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.ShellSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.ShellSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="QuickSort">QuickSort</span>
<p>快速排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>快速排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func QuickSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
func QuickSort[T any](slice []T comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -260,42 +268,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.QuickSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.QuickSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="HeapSort">HeapSort</span>
<p>堆排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>堆排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func HeapSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
func HeapSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -305,42 +316,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.HeapSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.HeapSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="MergeSort">MergeSort</span>
<p>归并排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>归并排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func MergeSort[T any](slice []T, comparator lancetconstraints.Comparator)
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -350,41 +364,45 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
algorithm.MergeSort(intSlice, comparator)
fmt.Println(intSlice) //[]int{1, 2, 3, 4, 5, 6}
algorithm.MergeSort(numbers, comparator)
fmt.Println(numbers)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="CountSort">CountSort</span>
<p>计数排序参数comparator需要实现包lancetconstraints.Comparator</p>
<p>计数排序参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func CountSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -394,42 +412,46 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
type intComparator struct{}
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
intSlice := []int{2, 1, 5, 3, 6, 4}
func main() {
numbers := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
sortedSlice := algorithm.CountSort(intSlice, comparator)
fmt.Println(sortedSlice) //[]int{1, 2, 3, 4, 5, 6}
sortedNums := algorithm.CountSort(numbers, comparator)
fmt.Println(sortedNums)
// Output:
// [1 2 3 4 5 6]
}
```
### <span id="BinarySearch">BinarySearch</span>
<p>二分递归查找,返回元素索引,未找到元素返回-1参数comparator需要实现包lancetconstraints.Comparator</p>
<p>二分递归查找,返回元素索引,未找到元素返回-1参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func BinarySearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -439,43 +461,48 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
var sortedNumbers = []int{1, 2, 3, 4, 5, 6, 7, 8}
func main() {
numbers := []int{1, 2, 3, 4, 5, 6, 7, 8}
comparator := &intComparator{}
foundIndex := algorithm.BinarySearch(sortedNumbers, 5, 0, len(sortedNumbers)-1, comparator)
fmt.Println(foundIndex) //4
notFoundIndex := algorithm.BinarySearch(sortedNumbers, 9, 0, len(sortedNumbers)-1, comparator)
fmt.Println(notFoundIndex) //-1
result1 := algorithm.BinarySearch(numbers, 5, 0, len(numbers)-1, comparator)
result2 := algorithm.BinarySearch(numbers, 9, 0, len(numbers)-1, comparator)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 4
// -1
}
```
### <span id="BinaryIterativeSearch">BinaryIterativeSearch</span>
<p>二分迭代查找,返回元素索引,未找到元素返回-1参数comparator需要实现包lancetconstraints.Comparator</p>
<p>二分迭代查找,返回元素索引,未找到元素返回-1参数comparator需要实现包lancetconstraints.Comparator。</p>
<b>函数签名:</b>
```go
func BinaryIterativeSearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -485,44 +512,48 @@ import (
"github.com/duke-git/lancet/v2/algorithm"
)
func main() {
type intComparator struct{}
type intComparator struct{}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
}
var sortedNumbers = []int{1, 2, 3, 4, 5, 6, 7, 8}
func main() {
numbers := []int{1, 2, 3, 4, 5, 6, 7, 8}
comparator := &intComparator{}
foundIndex := algorithm.BinaryIterativeSearch(sortedNumbers, 5, 0, len(sortedNumbers)-1, comparator)
fmt.Println(foundIndex) //4
notFoundIndex := algorithm.BinaryIterativeSearch(sortedNumbers, 9, 0, len(sortedNumbers)-1, comparator)
fmt.Println(notFoundIndex) //-1
result1 := algorithm.BinaryIterativeSearch(numbers, 5, 0, len(numbers)-1, comparator)
result2 := algorithm.BinaryIterativeSearch(numbers, 9, 0, len(numbers)-1, comparator)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 4
// -1
}
```
### <span id="LinearSearch">LinearSearch</span>
<p>线性查找,返回元素索引,未找到元素返回-1参数comparator需要实现包lancetconstraints.Comparator</p>
<p>基于传入的相等函数线性查找元素,返回元素索引,未找到元素返回-1。</p>
<b>函数签名:</b>
```go
func LinearSearch[T any](slice []T, target T, comparator lancetconstraints.Comparator) int
func LinearSearch[T any](slice []T, target T, equal func(a, b T) bool) int
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -533,36 +564,27 @@ import (
)
func main() {
type intComparator struct{}
numbers := []int{3, 4, 5, 3, 2, 1}
func (c *intComparator) Compare(v1 any, v2 any) int {
val1, _ := v1.(int)
val2, _ := v2.(int)
//ascending order
if val1 < val2 {
return -1
} else if val1 > val2 {
return 1
}
return 0
equalFunc := func(a, b int) bool {
return a == b
}
intSlice := []int{2, 1, 5, 3, 6, 4}
comparator := &intComparator{}
foundIndex := algorithm.LinearSearch(intSlice, 5, comparator)
fmt.Println(foundIndex) //2
result1 := algorithm.LinearSearch(numbers, 3, equalFunc)
result2 := algorithm.LinearSearch(numbers, 6, equalFunc)
notFoundIndex := algorithm.LinearSearch(sortedNumbers, 0, comparator)
fmt.Println(notFoundIndex) //-1
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0
// -1
}
```
### <span id="LRUCache">LRUCache</span>
<p>lru实现缓存</p>
<p>lru算法实现缓存。</p>
<b>函数签名:</b>
@@ -573,7 +595,8 @@ func (l *LRUCache[K, V]) Put(key K, value V)
func (l *LRUCache[K, V]) Delete(key K) bool
func (l *LRUCache[K, V]) Len() int
```
<b>Example:</b>
<b>示例:</b>
```go
package main
@@ -588,14 +611,26 @@ func main() {
cache.Put(1, 1)
cache.Put(2, 2)
cache.Put(3, 3)
fmt.Println(cache.Len()) // 3
result1, ok1 := cache.Get(1)
result2, ok2 := cache.Get(2)
result3, ok3 := cache.Get(3)
v, ok := cache.Get(1)
fmt.Println(v, ok) // 1 true
fmt.Println(result1, ok1)
fmt.Println(result2, ok2)
fmt.Println(result3, ok3)
ok = cache.Delete(1)
fmt.Println(ok) // true
fmt.Println(cache.Len())
ok := cache.Delete(2)
fmt.Println(ok)
// Output:
// 1 true
// 2 true
// 0 false
// 2
// true
}
```
```

View File

@@ -61,8 +61,6 @@ func main() {
}
```
### <span id="Bridge">Bridge</span>
<p>Link multiple channels into one channel until cancel the context.</p>
@@ -84,39 +82,37 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
genVals := func() <-chan <-chan int {
out := make(chan (<-chan int))
go func() {
defer close(out)
for i := 1; i <= 5; i++ {
stream := make(chan int, 1)
stream <- i
close(stream)
out <- stream
}
}()
return out
}
c := concurrency.NewChannel[int]()
genVals := func() <-chan <-chan int {
out := make(chan (<-chan int))
go func() {
defer close(out)
for i := 1; i <= 5; i++ {
stream := make(chan int, 1)
stream <- i
close(stream)
out <- stream
}
}()
return out
}
for v := range c.Bridge(ctx, genVals()) {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
// 4
// 5
for v := range c.Bridge(ctx, genVals()) {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
// 4
// 5
}
```
### <span id="FanIn">FanIn</span>
<p>Merge multiple channels into one channel until cancel the context.</p>
@@ -138,25 +134,24 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
channels := make([]<-chan int, 2)
c := concurrency.NewChannel[int]()
channels := make([]<-chan int, 2)
for i := 0; i < 2; i++ {
channels[i] = c.Take(ctx, c.Repeat(ctx, i), 2)
}
for i := 0; i < 2; i++ {
channels[i] = c.Take(ctx, c.Repeat(ctx, i), 2)
}
chs := c.FanIn(ctx, channels...)
chs := c.FanIn(ctx, channels...)
for v := range chs {
fmt.Println(v) //1 1 0 0 or 0 0 1 1
}
for v := range chs {
fmt.Println(v) //1 1 0 0 or 0 0 1 1
}
}
```
### <span id="Repeat">Repeat</span>
<p>Create channel, put values into the channel repeatly until cancel the context.</p>
@@ -178,25 +173,24 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1, 2), 4)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1, 2), 4)
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 1
// 2
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 1
// 2
}
```
### <span id="Generate">Generate</span>
<p>Creates a channel, then put values into the channel.</p>
@@ -218,20 +212,20 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Generate(ctx, 1, 2, 3)
c := concurrency.NewChannel[int]()
intStream := c.Generate(ctx, 1, 2, 3)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
// Output:
// 1
// 2
// 3
// Output:
// 1
// 2
// 3
}
```
@@ -256,28 +250,27 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
fn := func() string {
return "hello"
}
fn := func() string {
return "hello"
}
c := concurrency.NewChannel[string]()
intStream := c.Take(ctx, c.RepeatFn(ctx, fn), 3)
c := concurrency.NewChannel[string]()
intStream := c.Take(ctx, c.RepeatFn(ctx, fn), 3)
for v := range intStream {
fmt.Println(v)
}
// Output:
// hello
// hello
// hello
for v := range intStream {
fmt.Println(v)
}
// Output:
// hello
// hello
// hello
}
```
### <span id="Or">Or</span>
<p>Read one or more channels into one channel, will close when any readin channel is closed.</p>
@@ -299,31 +292,28 @@ import (
)
func main() {
sig := func(after time.Duration) <-chan any {
c := make(chan any)
go func() {
defer close(c)
time.Sleep(after)
}()
return c
}
sig := func(after time.Duration) <-chan any {
c := make(chan any)
go func() {
defer close(c)
time.Sleep(after)
}()
return c
}
start := time.Now()
start := time.Now()
c := concurrency.NewChannel[any]()
<-c.Or(
sig(1*time.Second),
sig(2*time.Second),
sig(3*time.Second),
)
c := concurrency.NewChannel[any]()
<-c.Or(
sig(1*time.Second),
sig(2*time.Second),
sig(3*time.Second),
)
fmt.Println("done after %v", time.Since(start)) //1.003s
fmt.Println("done after %v", time.Since(start)) //1.003s
}
```
### <span id="OrDone">OrDone</span>
<p>Read a channel into another channel, will close until cancel context.</p>
@@ -345,25 +335,23 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 3)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 3)
for v := range c.OrDone(ctx, intStream) {
fmt.Println(v)
}
// Output:
// 1
// 1
// 1
for v := range c.OrDone(ctx, intStream) {
fmt.Println(v)
}
// Output:
// 1
// 1
// 1
}
```
### <span id="Take">Take</span>
<p>Create a channel whose values are taken from another channel with limit number.</p>
@@ -385,32 +373,31 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
numbers := make(chan int, 5)
numbers <- 1
numbers <- 2
numbers <- 3
numbers <- 4
numbers <- 5
defer close(numbers)
numbers := make(chan int, 5)
numbers <- 1
numbers <- 2
numbers <- 3
numbers <- 4
numbers <- 5
defer close(numbers)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, numbers, 3)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, numbers, 3)
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
}
```
### <span id="Tee">Tee</span>
<p>Split one chanel into two channels, until cancel the context.</p>
@@ -432,22 +419,23 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 2)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 2)
ch1, ch2 := c.Tee(ctx, intStream)
ch1, ch2 := c.Tee(ctx, intStream)
for v := range ch1 {
fmt.Println(v)
fmt.Println(<-ch2)
}
// Output:
// 1
// 1
// 1
// 1
for v := range ch1 {
fmt.Println(v)
fmt.Println(<-ch2)
}
// Output:
// 1
// 1
// 1
// 1
}
```

View File

@@ -61,8 +61,6 @@ func main() {
}
```
### <span id="Bridge">Bridge</span>
<p>将多个channel链接到一个channel直到取消上下文。</p>
@@ -84,39 +82,37 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
genVals := func() <-chan <-chan int {
out := make(chan (<-chan int))
go func() {
defer close(out)
for i := 1; i <= 5; i++ {
stream := make(chan int, 1)
stream <- i
close(stream)
out <- stream
}
}()
return out
}
c := concurrency.NewChannel[int]()
genVals := func() <-chan <-chan int {
out := make(chan (<-chan int))
go func() {
defer close(out)
for i := 1; i <= 5; i++ {
stream := make(chan int, 1)
stream <- i
close(stream)
out <- stream
}
}()
return out
}
for v := range c.Bridge(ctx, genVals()) {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
// 4
// 5
for v := range c.Bridge(ctx, genVals()) {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
// 4
// 5
}
```
### <span id="FanIn">FanIn</span>
<p>将多个channel合并为一个channel直到取消上下文。</p>
@@ -138,25 +134,24 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
channels := make([]<-chan int, 2)
c := concurrency.NewChannel[int]()
channels := make([]<-chan int, 2)
for i := 0; i < 2; i++ {
channels[i] = c.Take(ctx, c.Repeat(ctx, i), 2)
}
for i := 0; i < 2; i++ {
channels[i] = c.Take(ctx, c.Repeat(ctx, i), 2)
}
chs := c.FanIn(ctx, channels...)
chs := c.FanIn(ctx, channels...)
for v := range chs {
fmt.Println(v) //1 1 0 0 or 0 0 1 1
}
for v := range chs {
fmt.Println(v) //1 1 0 0 or 0 0 1 1
}
}
```
### <span id="Generate">Generate</span>
<p>根据传入的值生成channel.</p>
@@ -178,20 +173,20 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Generate(ctx, 1, 2, 3)
c := concurrency.NewChannel[int]()
intStream := c.Generate(ctx, 1, 2, 3)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
fmt.Println(<-intStream)
// Output:
// 1
// 2
// 3
// Output:
// 1
// 2
// 3
}
```
@@ -216,26 +211,24 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1, 2), 4)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1, 2), 4)
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 1
// 2
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 1
// 2
}
```
### <span id="RepeatFn">RepeatFn</span>
<p>返回一个channel重复执行函数fn并将结果放入返回的channel直到取消上下文。</p>
@@ -257,28 +250,26 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
fn := func() string {
return "hello"
}
fn := func() string {
return "hello"
}
c := concurrency.NewChannel[string]()
intStream := c.Take(ctx, c.RepeatFn(ctx, fn), 3)
c := concurrency.NewChannel[string]()
intStream := c.Take(ctx, c.RepeatFn(ctx, fn), 3)
for v := range intStream {
fmt.Println(v)
}
// Output:
// hello
// hello
// hello
for v := range intStream {
fmt.Println(v)
}
// Output:
// hello
// hello
// hello
}
```
### <span id="Or">Or</span>
<p>将一个或多个channel读取到一个channel中当任何读取channel关闭时将结束读取。</p>
@@ -300,31 +291,28 @@ import (
)
func main() {
sig := func(after time.Duration) <-chan any {
c := make(chan any)
go func() {
defer close(c)
time.Sleep(after)
}()
return c
}
sig := func(after time.Duration) <-chan any {
c := make(chan any)
go func() {
defer close(c)
time.Sleep(after)
}()
return c
}
start := time.Now()
start := time.Now()
c := concurrency.NewChannel[any]()
<-c.Or(
sig(1*time.Second),
sig(2*time.Second),
sig(3*time.Second),
)
c := concurrency.NewChannel[any]()
<-c.Or(
sig(1*time.Second),
sig(2*time.Second),
sig(3*time.Second),
)
fmt.Println("done after %v", time.Since(start)) //1.003s
fmt.Println("done after %v", time.Since(start)) //1.003s
}
```
### <span id="OrDone">OrDone</span>
<p>将一个channel读入另一个channel直到取消上下文。</p>
@@ -346,25 +334,23 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 3)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 3)
for v := range c.OrDone(ctx, intStream) {
fmt.Println(v)
}
// Output:
// 1
// 1
// 1
for v := range c.OrDone(ctx, intStream) {
fmt.Println(v)
}
// Output:
// 1
// 1
// 1
}
```
### <span id="Take">Take</span>
<p>返回一个channel其值从另一个channel获取直到取消上下文。</p>
@@ -386,32 +372,31 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
numbers := make(chan int, 5)
numbers <- 1
numbers <- 2
numbers <- 3
numbers <- 4
numbers <- 5
defer close(numbers)
numbers := make(chan int, 5)
numbers <- 1
numbers <- 2
numbers <- 3
numbers <- 4
numbers <- 5
defer close(numbers)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, numbers, 3)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, numbers, 3)
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
for v := range intStream {
fmt.Println(v)
}
// Output:
// 1
// 2
// 3
}
```
### <span id="Tee">Tee</span>
<p>将一个channel分成两个channel直到取消上下文。</p>
@@ -433,22 +418,22 @@ import (
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 2)
c := concurrency.NewChannel[int]()
intStream := c.Take(ctx, c.Repeat(ctx, 1), 2)
ch1, ch2 := c.Tee(ctx, intStream)
ch1, ch2 := c.Tee(ctx, intStream)
for v := range ch1 {
fmt.Println(v)
fmt.Println(<-ch2)
}
// Output:
// 1
// 1
// 1
// 1
for v := range ch1 {
fmt.Println(v)
fmt.Println(<-ch2)
}
// Output:
// 1
// 1
// 1
// 1
}
```

View File

@@ -57,41 +57,52 @@ import (
)
func main() {
// bool
fmt.Println(condition.Bool(false)) // false
fmt.Println(condition.Bool(true)) // true
// bool
result1 := condition.Bool(false)
result2 := condition.Bool(true)
fmt.Println(result1) // false
fmt.Println(result2) // true
// integer
fmt.Println(condition.Bool(0)) // false
fmt.Println(condition.Bool(1)) // true
// integer
result3 := condition.Bool(0)
result4 := condition.Bool(1)
fmt.Println(result3) // false
fmt.Println(result4) // true
// float
fmt.Println(condition.Bool(0.0)) // false
fmt.Println(condition.Bool(0.1)) // true
// string
result5 := condition.Bool("")
result6 := condition.Bool(" ")
fmt.Println(result5) // false
fmt.Println(result6) // true
// string
fmt.Println(condition.Bool("")) // false
fmt.Println(condition.Bool(" ")) // true
fmt.Println(condition.Bool("0")) // true
// slice
nums := []int{}
result7 := condition.Bool(nums)
// slice
var nums [2]int
fmt.Println(condition.Bool(nums)) // false
nums = [2]int{0, 1}
fmt.Println(condition.Bool(nums)) // true
nums = append(nums, 1, 2)
result8 := condition.Bool(nums)
fmt.Println(result7) // false
fmt.Println(result8) // true
// map
fmt.Println(condition.Bool(map[string]string{})) // false
fmt.Println(condition.Bool(map[string]string{"a": "a"})) // true
// struct
result9 = condition.Bool(struct{}{})
fmt.Println(result8) // false
// struct
fmt.Println(condition.Bool(struct{}{})) // false
fmt.Println(condition.Bool(time.Now())) // true
// Output:
// false
// true
// false
// true
// false
// true
// false
// true
// false
}
```
### <span id="And">And</span>
<p>Returns true if both a and b are truthy.</p>
@@ -111,10 +122,10 @@ import (
)
func main() {
fmt.Println(condition.And(0, 1)) // false
fmt.Println(condition.And(0, "")) // false
fmt.Println(condition.And(0, "0")) // false
fmt.Println(condition.And(1, "0")) // true
fmt.Println(condition.And(0, 1)) // false
fmt.Println(condition.And(0, "")) // false
fmt.Println(condition.And(0, "0")) // false
fmt.Println(condition.And(1, "0")) // true
}
```
@@ -139,10 +150,10 @@ import (
)
func main() {
fmt.Println(condition.Or(0, "")) // false
fmt.Println(condition.Or(0, 1)) // true
fmt.Println(condition.Or(0, "0")) // true
fmt.Println(condition.Or(1, "0")) // true
fmt.Println(condition.Or(0, "")) // false
fmt.Println(condition.Or(0, 1)) // true
fmt.Println(condition.Or(0, "0")) // true
fmt.Println(condition.Or(1, "0")) // true
}
```
@@ -167,10 +178,10 @@ import (
)
func main() {
fmt.Println(condition.Xor(0, 0)) // false
fmt.Println(condition.Xor(0, 1)) // true
fmt.Println(condition.Xor(1, 0)) // true
fmt.Println(condition.Xor(1, 1)) // false
fmt.Println(condition.Xor(0, 0)) // false
fmt.Println(condition.Xor(0, 1)) // true
fmt.Println(condition.Xor(1, 0)) // true
fmt.Println(condition.Xor(1, 1)) // false
}
```
@@ -195,10 +206,10 @@ import (
)
func main() {
fmt.Println(condition.Nor(0, 0)) // true
fmt.Println(condition.Nor(0, 1)) // false
fmt.Println(condition.Nor(1, 0)) // false
fmt.Println(condition.Nor(1, 1)) // false
fmt.Println(condition.Nor(0, 0)) // true
fmt.Println(condition.Nor(0, 1)) // false
fmt.Println(condition.Nor(1, 0)) // false
fmt.Println(condition.Nor(1, 1)) // false
}
```
@@ -222,10 +233,10 @@ import (
)
func main() {
fmt.Println(condition.Xnor(0, 0)) // true
fmt.Println(condition.Xnor(0, 1)) // false
fmt.Println(condition.Xnor(1, 0)) // false
fmt.Println(condition.Xnor(1, 1)) // true
fmt.Println(condition.Xnor(0, 0)) // true
fmt.Println(condition.Xnor(0, 1)) // false
fmt.Println(condition.Xnor(1, 0)) // false
fmt.Println(condition.Xnor(1, 1)) // true
}
```
@@ -249,10 +260,10 @@ import (
)
func main() {
fmt.Println(condition.Nand(0, 0)) // true
fmt.Println(condition.Nand(0, 1)) // true
fmt.Println(condition.Nand(1, 0)) // true
fmt.Println(condition.Nand(1, 1)) // false
fmt.Println(condition.Nand(0, 0)) // true
fmt.Println(condition.Nand(0, 1)) // true
fmt.Println(condition.Nand(1, 0)) // true
fmt.Println(condition.Nand(1, 1)) // false
}
```
@@ -277,10 +288,18 @@ import (
)
func main() {
trueValue := "1"
falseValue := "0"
conditionTrue := 2 > 1
result1 := condition.TernaryOperator(conditionTrue, 0, 1)
fmt.Println(condition.TernaryOperator(true, trueValue, falseValue)) // "1"
conditionFalse := 2 > 3
result2 := condition.TernaryOperator(conditionFalse, 0, 1)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0
// 1
}
```

View File

@@ -56,41 +56,51 @@ import (
)
func main() {
// bool
fmt.Println(condition.Bool(false)) // false
fmt.Println(condition.Bool(true)) // true
// bool
result1 := condition.Bool(false)
result2 := condition.Bool(true)
fmt.Println(result1) // false
fmt.Println(result2) // true
// integer
fmt.Println(condition.Bool(0)) // false
fmt.Println(condition.Bool(1)) // true
// integer
result3 := condition.Bool(0)
result4 := condition.Bool(1)
fmt.Println(result3) // false
fmt.Println(result4) // true
// float
fmt.Println(condition.Bool(0.0)) // false
fmt.Println(condition.Bool(0.1)) // true
// string
result5 := condition.Bool("")
result6 := condition.Bool(" ")
fmt.Println(result5) // false
fmt.Println(result6) // true
// string
fmt.Println(condition.Bool("")) // false
fmt.Println(condition.Bool(" ")) // true
fmt.Println(condition.Bool("0")) // true
// slice
nums := []int{}
result7 := condition.Bool(nums)
// slice
var nums [2]int
fmt.Println(condition.Bool(nums)) // false
nums = [2]int{0, 1}
fmt.Println(condition.Bool(nums)) // true
nums = append(nums, 1, 2)
result8 := condition.Bool(nums)
fmt.Println(result7) // false
fmt.Println(result8) // true
// map
fmt.Println(condition.Bool(map[string]string{})) // false
fmt.Println(condition.Bool(map[string]string{"a": "a"})) // true
// struct
result9 = condition.Bool(struct{}{})
fmt.Println(result8) // false
// struct
fmt.Println(condition.Bool(struct{}{})) // false
fmt.Println(condition.Bool(time.Now())) // true
// Output:
// false
// true
// false
// true
// false
// true
// false
// true
// false
}
```
### <span id="And">And</span>
<p>逻辑且操作当切仅当a和b都为true时返回true</p>
@@ -110,15 +120,13 @@ import (
)
func main() {
fmt.Println(condition.And(0, 1)) // false
fmt.Println(condition.And(0, "")) // false
fmt.Println(condition.And(0, "0")) // false
fmt.Println(condition.And(1, "0")) // true
fmt.Println(condition.And(0, 1)) // false
fmt.Println(condition.And(0, "")) // false
fmt.Println(condition.And(0, "0")) // false
fmt.Println(condition.And(1, "0")) // true
}
```
### <span id="Or">Or</span>
<p>逻辑或操作当切仅当a和b都为false时返回false</p>
@@ -138,15 +146,13 @@ import (
)
func main() {
fmt.Println(condition.Or(0, "")) // false
fmt.Println(condition.Or(0, 1)) // true
fmt.Println(condition.Or(0, "0")) // true
fmt.Println(condition.Or(1, "0")) // true
fmt.Println(condition.Or(0, "")) // false
fmt.Println(condition.Or(0, 1)) // true
fmt.Println(condition.Or(0, "0")) // true
fmt.Println(condition.Or(1, "0")) // true
}
```
### <span id="Xor">Xor</span>
<p>逻辑异或操作a和b相同返回falsea和b不相同返回true</p>
@@ -166,15 +172,13 @@ import (
)
func main() {
fmt.Println(condition.Xor(0, 0)) // false
fmt.Println(condition.Xor(0, 1)) // true
fmt.Println(condition.Xor(1, 0)) // true
fmt.Println(condition.Xor(1, 1)) // false
fmt.Println(condition.Xor(0, 0)) // false
fmt.Println(condition.Xor(0, 1)) // true
fmt.Println(condition.Xor(1, 0)) // true
fmt.Println(condition.Xor(1, 1)) // false
}
```
### <span id="Nor">Nor</span>
<p>异或的取反操作</p>
@@ -194,15 +198,13 @@ import (
)
func main() {
fmt.Println(condition.Nor(0, 0)) // true
fmt.Println(condition.Nor(0, 1)) // false
fmt.Println(condition.Nor(1, 0)) // false
fmt.Println(condition.Nor(1, 1)) // false
fmt.Println(condition.Nor(0, 0)) // true
fmt.Println(condition.Nor(0, 1)) // false
fmt.Println(condition.Nor(1, 0)) // false
fmt.Println(condition.Nor(1, 1)) // false
}
```
### <span id="Xnor">Xnor</span>
<p>如果a和b都是真的或a和b均是假的则返回true。</p>
@@ -222,10 +224,10 @@ import (
)
func main() {
fmt.Println(condition.Xnor(0, 0)) // true
fmt.Println(condition.Xnor(0, 1)) // false
fmt.Println(condition.Xnor(1, 0)) // false
fmt.Println(condition.Xnor(1, 1)) // true
fmt.Println(condition.Xnor(0, 0)) // true
fmt.Println(condition.Xnor(0, 1)) // false
fmt.Println(condition.Xnor(1, 0)) // false
fmt.Println(condition.Xnor(1, 1)) // true
}
```
@@ -248,15 +250,13 @@ import (
)
func main() {
fmt.Println(condition.Nand(0, 0)) // true
fmt.Println(condition.Nand(0, 1)) // true
fmt.Println(condition.Nand(1, 0)) // true
fmt.Println(condition.Nand(1, 1)) // false
fmt.Println(condition.Nand(0, 0)) // true
fmt.Println(condition.Nand(0, 1)) // true
fmt.Println(condition.Nand(1, 0)) // true
fmt.Println(condition.Nand(1, 1)) // false
}
```
### <span id="TernaryOperator">TernaryOperator</span>
<p>三元运算符</p>
@@ -276,10 +276,18 @@ import (
)
func main() {
trueValue := "1"
falseValue := "0"
conditionTrue := 2 > 1
result1 := condition.TernaryOperator(conditionTrue, 0, 1)
fmt.Println(condition.TernaryOperator(true, trueValue, falseValue)) // "1"
conditionFalse := 2 > 3
result2 := condition.TernaryOperator(conditionFalse, 0, 1)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0
// 1
}
```

View File

@@ -40,8 +40,6 @@ import (
## Documentation
### <span id="ColorHexToRGB">ColorHexToRGB</span>
<p>Convert color hex to color rgb.</p>
@@ -63,12 +61,14 @@ import (
func main() {
colorHex := "#003366"
r, g, b := convertor.ColorHexToRGB(colorHex)
fmt.Println(r, g, b) //0,51,102
fmt.Println(r, g, b)
// Output:
// 0 51 102
}
```
### <span id="ColorRGBToHex">ColorRGBToHex</span>
<p>Convert color rgb to color hex.</p>
@@ -92,14 +92,15 @@ func main() {
r := 0
g := 51
b := 102
colorHex := convertor.ColorRGBToHex(r, g, b)
colorHex := ColorRGBToHex(r, g, b)
fmt.Println(colorHex) //#003366
fmt.Println(colorHex)
// Output:
// #003366
}
```
### <span id="ToBool">ToBool</span>
<p>Convert string to bool. Use strconv.ParseBool.</p>
@@ -120,22 +121,26 @@ import (
)
func main() {
v1, _ := convertor.ToBool("1")
fmt.Println(v1) //true
cases := []string{"1", "true", "True", "false", "False", "0", "123", "0.0", "abc"}
v2, _ := convertor.ToBool("true")
fmt.Println(v2) //true
for i := 0; i < len(cases); i++ {
result, _ := convertor.ToBool(cases[i])
fmt.Println(result)
}
v3, _ := convertor.ToBool("True")
fmt.Println(v3) //true
v4, _ := convertor.ToBool("123")
fmt.Println(v4) //false
// Output:
// true
// true
// true
// false
// false
// false
// false
// false
// false
}
```
### <span id="ToBytes">ToBytes</span>
<p>Convert value to byte slice.</p>
@@ -156,16 +161,18 @@ import (
)
func main() {
bytesData, err := convertor.ToBytes("0")
bytesData, err := convertor.ToBytes("abc")
if err != nil {
fmt.Println(err)
}
fmt.Println(bytesData) //[]bytes{3, 4, 0, 0}
fmt.Println(bytesData)
// Output:
// [97 98 99]
}
```
### <span id="ToChar">ToChar</span>
<p>Convert string to char slice.</p>
@@ -186,18 +193,21 @@ import (
)
func main() {
chars := convertor.ToChar("")
fmt.Println(chars) //[]string{""}
result1 := convertor.ToChar("")
result2 := convertor.ToChar("abc")
result3 := convertor.ToChar("1 2#3")
chars = convertor.ToChar("abc")
fmt.Println(chars) //[]string{"a", "b", "c"}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
chars = convertor.ToChar("1 2#3")
fmt.Println(chars) //[]string{"1", " ", "2", "#", "3"}
// Output:
// []
// [a b c]
// [1 2 # 3]
}
```
### <span id="ToChannel">ToChannel</span>
<p>Convert a collection of elements to a read-only channel.</p>
@@ -219,23 +229,21 @@ import (
func main() {
ch := convertor.ToChannel([]int{1, 2, 3})
result1 := <-ch
result2 := <-ch
result3 := <-ch
val1, _ := <-ch
fmt.Println(val1) //1
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
val2, _ := <-ch
fmt.Println(val2) //2
val3, _ := <-ch
fmt.Println(val3) //3
_, ok := <-ch
fmt.Println(ok) //false
// Output:
// 1
// 2
// 3
}
```
### <span id="ToFloat">ToFloat</span>
<p>Convert value to a float64 value. If param is a invalid floatable, will return 0.0 and error. </p>
@@ -256,19 +264,30 @@ import (
)
func main() {
v, err := convertor.ToFloat("")
if err != nil {
fmt.Println(err) //strconv.ParseFloat: parsing "": invalid syntax
}
fmt.Println(v) //0
result1, _ := convertor.ToFloat("")
result2, err := convertor.ToFloat("abc")
result3, _ := convertor.ToFloat("-1")
result4, _ := convertor.ToFloat("-.11")
result5, _ := convertor.ToFloat("1.23e3")
result6, _ := convertor.ToFloat(true)
v, _ = convertor.ToFloat("-.11")
fmt.Println(v) //-0.11
fmt.Println(result1)
fmt.Println(result2, err)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
// Output:
// 0
// 0 strconv.ParseFloat: parsing "": invalid syntax
// -1
// -0.11
// 1230
// 0
}
```
### <span id="ToInt">ToInt</span>
<p>Convert value to a int64 value. If param is a invalid intable, will return 0 and error. </p>
@@ -289,19 +308,27 @@ import (
)
func main() {
v, err := convertor.ToInt("")
if err != nil {
fmt.Println(err) //strconv.ParseInt: parsing "": invalid syntax
}
fmt.Println(v) //0
result1, _ := convertor.ToInt("123")
result2, _ := convertor.ToInt("-123")
result3, _ := convertor.ToInt(float64(12.3))
result4, err := convertor.ToInt("abc")
result5, _ := convertor.ToInt(true)
v, _ = convertor.ToFloat(1.12)
fmt.Println(v) //1
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4, err)
fmt.Println(result5)
// Output:
// 123
// -123
// 12
// 0 strconv.ParseInt: parsing "": invalid syntax
// 0
}
```
### <span id="ToJson">ToJson</span>
<p>Convert interface to json string. If param can't be converted, will return "" and error. </p>
@@ -322,14 +349,20 @@ import (
)
func main() {
var aMap = map[string]int{"a": 1, "b": 2, "c": 3}
jsonStr, _ := convertor.ToJson(aMap)
fmt.Printf("%q", jsonStr) //"{\"a\":1,\"b\":2,\"c\":3}"
aMap := map[string]int{"a": 1, "b": 2, "c": 3}
result, err := ToJson(aMap)
if err != nil {
fmt.Printf("%v", err)
}
fmt.Println(result)
// Output:
// {"a":1,"b":2,"c":3}
}
```
### <span id="ToMap">ToMap</span>
<p>Convert a slice of structs to a map based on iteratee function. </p>
@@ -358,16 +391,18 @@ func main() {
{name: "Hello", code: 100},
{name: "Hi", code: 101},
}
result := convertor.ToMap(messages, func(msg Message) (int, string) {
return msg.code, msg.name
})
fmt.Println(result) //{100: "Hello", 101: "Hi"}
fmt.Println(result)
// Output:
// map[100:Hello 101:Hi]
}
```
### <span id="ToPointer">ToPointer</span>
<p>Returns a pointer to passed value. </p>
@@ -389,11 +424,13 @@ import (
func main() {
result := convertor.ToPointer(123)
fmt.Println(*result) //123
fmt.Println(*result)
// Output:
// 123
}
```
### <span id="ToString">ToString</span>
<p>ToString convert value to string, for number, string, []byte, will convert to string. For other type (slice, map, array, struct) will call json.Marshal</p>
@@ -414,13 +451,33 @@ import (
)
func main() {
fmt.Printf("%q", convertor.ToString(1)) //"1"
fmt.Printf("%q", convertor.ToString(1.1)) //"1.1"
fmt.Printf("%q", convertor.ToString([]int{1, 2, 3})) //"[1,2,3]"
result1 := convertor.ToString("")
result2 := convertor.ToString(nil)
result3 := convertor.ToString(0)
result4 := convertor.ToString(1.23)
result5 := convertor.ToString(true)
result6 := convertor.ToString(false)
result7 := convertor.ToString([]int{1, 2, 3})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
// Output:
//
//
// 0
// 1.23
// true
// false
// [1,2,3]
}
```
### <span id="StructToMap">StructToMap</span>
<p>Convert struct to map, only convert exported field, struct field tag `json` should be set.</p>
@@ -451,12 +508,13 @@ func main() {
}
pm, _ := convertor.StructToMap(p)
fmt.Printf("type: %T, value: %s", pm, pm) //type: map[string]interface {}, value: map[name:test]
fmt.Println(pm)
// Output:
// map[name:test]
}
```
### <span id="MapToSlice">MapToSlice</span>
<p>Convert a map to a slice based on iteratee function.</p>
@@ -508,12 +566,13 @@ import (
func main() {
byteData, _ := convertor.EncodeByte("abc")
fmt.Println(byteData) //[]byte{6, 12, 0, 3, 97, 98, 99}
fmt.Println(byteData)
// Output:
// [6 12 0 3 97 98 99]
}
```
### <span id="DecodeByte">DecodeByte</span>
<p>Decode byte data to target object. target should be a pointer instance.</p>
@@ -535,8 +594,16 @@ import (
func main() {
var result string
byteData := []byte{6, 12, 0, 3, 97, 98, 99}
convertor.DecodeByte(byteData, &result)
fmt.Println(result) //"abc"
byteData := []byte{6, 12, 0, 3, 97, 98, 99}
err := convertor.DecodeByte(byteData, &result)
if err != nil {
return
}
fmt.Println(result)
// Output:
// abc
}
```

View File

@@ -43,16 +43,15 @@ import (
## 文档
### <span id="ColorHexToRGB">ColorHexToRGB</span>
<p>颜色值十六进制转rgb</p>
<p>颜色值十六进制转rgb</p>
<b>函数签名:</b>
```go
func ColorHexToRGB(colorHex string) (red, green, blue int)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -65,22 +64,24 @@ import (
func main() {
colorHex := "#003366"
r, g, b := convertor.ColorHexToRGB(colorHex)
fmt.Println(r, g, b) //0,51,102
fmt.Println(r, g, b)
// Output:
// 0 51 102
}
```
### <span id="ColorRGBToHex">ColorRGBToHex</span>
<p>颜色值rgb转十六进制</p>
<p>颜色值rgb转十六进制</p>
<b>函数签名:</b>
```go
func ColorRGBToHex(red, green, blue int) string
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -94,24 +95,25 @@ func main() {
r := 0
g := 51
b := 102
colorHex := convertor.ColorRGBToHex(r, g, b)
colorHex := ColorRGBToHex(r, g, b)
fmt.Println(colorHex) //#003366
fmt.Println(colorHex)
// Output:
// #003366
}
```
### <span id="ToBool">ToBool</span>
<p>字符串转布尔类型使用strconv.ParseBool</p>
<p>字符串转布尔类型使用strconv.ParseBool</p>
<b>函数签名:</b>
```go
func ToBool(s string) (bool, error)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -122,32 +124,36 @@ import (
)
func main() {
v1, _ := convertor.ToBool("1")
fmt.Println(v1) //true
cases := []string{"1", "true", "True", "false", "False", "0", "123", "0.0", "abc"}
v2, _ := convertor.ToBool("true")
fmt.Println(v2) //true
for i := 0; i < len(cases); i++ {
result, _ := convertor.ToBool(cases[i])
fmt.Println(result)
}
v3, _ := convertor.ToBool("True")
fmt.Println(v3) //true
v4, _ := convertor.ToBool("123")
fmt.Println(v4) //false
// Output:
// true
// true
// true
// false
// false
// false
// false
// false
// false
}
```
### <span id="ToBytes">ToBytes</span>
<p>interface转字节切片.</p>
<p>Interface转字节切片</p>
<b>函数签名:</b>
```go
func ToBytes(data any) ([]byte, error)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -158,26 +164,28 @@ import (
)
func main() {
bytesData, err := convertor.ToBytes("0")
bytesData, err := convertor.ToBytes("abc")
if err != nil {
fmt.Println(err)
}
fmt.Println(bytesData) //[]bytes{3, 4, 0, 0}
fmt.Println(bytesData)
// Output:
// [97 98 99]
}
```
### <span id="ToChar">ToChar</span>
<p>字符串转字符切片</p>
<p>字符串转字符切片</p>
<b>函数签名:</b>
```go
func ToChar(s string) []string
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -188,29 +196,31 @@ import (
)
func main() {
chars := convertor.ToChar("")
fmt.Println(chars) //[]string{""}
result1 := convertor.ToChar("")
result2 := convertor.ToChar("abc")
result3 := convertor.ToChar("1 2#3")
chars = convertor.ToChar("abc")
fmt.Println(chars) //[]string{"a", "b", "c"}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
chars = convertor.ToChar("1 2#3")
fmt.Println(chars) //[]string{"1", " ", "2", "#", "3"}
// Output:
// []
// [a b c]
// [1 2 # 3]
}
```
### <span id="ToChannel">ToChannel</span>
<p>将切片转为只读channel</p>
<p>将切片转为只读channel</p>
<b>函数签名:</b>
```go
func ToChannel[T any](array []T) <-chan T
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -222,33 +232,31 @@ import (
func main() {
ch := convertor.ToChannel([]int{1, 2, 3})
result1 := <-ch
result2 := <-ch
result3 := <-ch
val1, _ := <-ch
fmt.Println(val1) //1
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
val2, _ := <-ch
fmt.Println(val2) //2
val3, _ := <-ch
fmt.Println(val3) //3
_, ok := <-ch
fmt.Println(ok) //false
// Output:
// 1
// 2
// 3
}
```
### <span id="ToFloat">ToFloat</span>
<p>将interface转成float64类型如果参数无法转换会返回0和error</p>
<p>将interface转成float64类型如果参数无法转换会返回0和error</p>
<b>函数签名:</b>
```go
func ToFloat(value any) (float64, error)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -259,29 +267,40 @@ import (
)
func main() {
v, err := convertor.ToFloat("")
if err != nil {
fmt.Println(err) //strconv.ParseFloat: parsing "": invalid syntax
}
fmt.Println(v) //0
result1, _ := convertor.ToFloat("")
result2, err := convertor.ToFloat("abc")
result3, _ := convertor.ToFloat("-1")
result4, _ := convertor.ToFloat("-.11")
result5, _ := convertor.ToFloat("1.23e3")
result6, _ := convertor.ToFloat(true)
v, _ = convertor.ToFloat("-.11")
fmt.Println(v) //-0.11
fmt.Println(result1)
fmt.Println(result2, err)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
// Output:
// 0
// 0 strconv.ParseFloat: parsing "": invalid syntax
// -1
// -0.11
// 1230
// 0
}
```
### <span id="ToInt">ToInt</span>
<p>将interface转成int64类型如果参数无法转换会返回0和error</p>
<p>将interface转成int64类型如果参数无法转换会返回0和error</p>
<b>函数签名:</b>
```go
func ToInt(value any) (int64, error)
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -292,29 +311,37 @@ import (
)
func main() {
v, err := convertor.ToInt("")
if err != nil {
fmt.Println(err) //strconv.ParseInt: parsing "": invalid syntax
}
fmt.Println(v) //0
result1, _ := convertor.ToInt("123")
result2, _ := convertor.ToInt("-123")
result3, _ := convertor.ToInt(float64(12.3))
result4, err := convertor.ToInt("abc")
result5, _ := convertor.ToInt(true)
v, _ = convertor.ToFloat(1.12)
fmt.Println(v) //1
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4, err)
fmt.Println(result5)
// Output:
// 123
// -123
// 12
// 0 strconv.ParseInt: parsing "": invalid syntax
// 0
}
```
### <span id="ToJson">ToJson</span>
<p>将interface转成json字符串如果参数无法转换会返回""和error</p>
<p>将interface转成json字符串如果参数无法转换会返回""和error</p>
<b>函数签名:</b>
```go
func ToJson(value any) (string, error)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -325,24 +352,30 @@ import (
)
func main() {
var aMap = map[string]int{"a": 1, "b": 2, "c": 3}
jsonStr, _ := convertor.ToJson(aMap)
fmt.Printf("%q", jsonStr) //"{\"a\":1,\"b\":2,\"c\":3}"
aMap := map[string]int{"a": 1, "b": 2, "c": 3}
result, err := ToJson(aMap)
if err != nil {
fmt.Printf("%v", err)
}
fmt.Println(result)
// Output:
// {"a":1,"b":2,"c":3}
}
```
### <span id="ToMap">ToMap</span>
<p>将切片转为map</p>
<p>将切片转为map</p>
<b>函数签名:</b>
```go
func ToMap[T any, K comparable, V any](array []T, iteratee func(T) (K, V)) map[K]V
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -361,26 +394,28 @@ func main() {
{name: "Hello", code: 100},
{name: "Hi", code: 101},
}
result := convertor.ToMap(messages, func(msg Message) (int, string) {
return msg.code, msg.name
})
fmt.Println(result) //{100: "Hello", 101: "Hi"}
fmt.Println(result)
// Output:
// map[100:Hello 101:Hi]
}
```
### <span id="ToPointer">ToPointer</span>
<p>返回传入值的指针</p>
<p>返回传入值的指针</p>
<b>函数签名:</b>
```go
func ToPointer[T any](value T) *T
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -392,22 +427,23 @@ import (
func main() {
result := convertor.ToPointer(123)
fmt.Println(*result) //123
fmt.Println(*result)
// Output:
// 123
}
```
### <span id="ToString">ToString</span>
<p>将值转换为字符串,对于数字、字符串、[]byte将转换为字符串。 对于其他类型(切片、映射、数组、结构)将调用 json.Marshal</p>
<p>将值转换为字符串,对于数字、字符串、[]byte将转换为字符串。 对于其他类型(切片、映射、数组、结构)将调用 json.Marshal</p>
<b>函数签名:</b>
```go
func ToString(value any) string
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -418,24 +454,43 @@ import (
)
func main() {
fmt.Printf("%q", convertor.ToString(1)) //"1"
fmt.Printf("%q", convertor.ToString(1.1)) //"1.1"
fmt.Printf("%q", convertor.ToString([]int{1, 2, 3})) //"[1,2,3]"
result1 := convertor.ToString("")
result2 := convertor.ToString(nil)
result3 := convertor.ToString(0)
result4 := convertor.ToString(1.23)
result5 := convertor.ToString(true)
result6 := convertor.ToString(false)
result7 := convertor.ToString([]int{1, 2, 3})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
// Output:
//
//
// 0
// 1.23
// true
// false
// [1,2,3]
}
```
### <span id="StructToMap">StructToMap</span>
<p>将struct转成map只会转换struct中可导出的字段。struct中导出字段需要设置json tag标记</p>
<p>将struct转成map只会转换struct中可导出的字段。struct中导出字段需要设置json tag标记</p>
<b>函数签名:</b>
```go
func StructToMap(value any) (map[string]any, error)
```
<b>列子:</b>
<b>示例:</b>
```go
package main
@@ -456,22 +511,23 @@ func main() {
}
pm, _ := convertor.StructToMap(p)
fmt.Printf("type: %T, value: %s", pm, pm) //type: map[string]interface {}, value: map[name:test]
fmt.Println(pm)
// Output:
// map[name:test]
}
```
### <span id="MapToSlice">MapToSlice</span>
<p>map中key和value执行函数iteratee后转为切片</p>
<p>map中key和value执行函数iteratee后转为切片</p>
<b>函数签名:</b>
```go
func MapToSlice[T any, K comparable, V any](aMap map[K]V, iteratee func(K, V) T) []T
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -491,18 +547,16 @@ func main() {
}
```
### <span id="EncodeByte">EncodeByte</span>
<p>将data编码成字节切片</p>
<p>将data编码成字节切片</p>
<b>函数签名:</b>
```go
func EncodeByte(data any) ([]byte, error)
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -514,22 +568,23 @@ import (
func main() {
byteData, _ := convertor.EncodeByte("abc")
fmt.Println(byteData) //[]byte{6, 12, 0, 3, 97, 98, 99}
fmt.Println(byteData)
// Output:
// [6 12 0 3 97 98 99]
}
```
### <span id="DecodeByte">DecodeByte</span>
<p>解码字节切片到目标对象,目标对象需要传入一个指针实例</p>
<p>解码字节切片到目标对象,目标对象需要传入一个指针实例</p>
<b>函数签名:</b>
```go
func DecodeByte(data []byte, target any) error
```
<b>例:</b>
<b>例:</b>
```go
package main
@@ -541,8 +596,16 @@ import (
func main() {
var result string
byteData := []byte{6, 12, 0, 3, 97, 98, 99}
convertor.DecodeByte(byteData, &result)
fmt.Println(result) //"abc"
byteData := []byte{6, 12, 0, 3, 97, 98, 99}
err := convertor.DecodeByte(byteData, &result)
if err != nil {
return
}
fmt.Println(result)
// Output:
// abc
}
```

View File

@@ -61,8 +61,6 @@ import (
## Documentation
### <span id="AesEcbEncrypt">AesEcbEncrypt</span>
<p>Encrypt data with key use AES ECB algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -83,16 +81,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesEcbEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
encrypted := cryptor.AesEcbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesEcbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesEcbDecrypt">AesEcbDecrypt</span>
<p>Decrypt data with key use AES ECB algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -113,16 +114,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesEcbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesEcbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCbcEncrypt">AesCbcEncrypt</span>
<p>Encrypt data with key use AES CBC algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -143,16 +147,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesCbcEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
encrypted := cryptor.AesCbcEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesCbcDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCbcDecrypt">AesCbcDecrypt</span>
<p>Decrypt data with key use AES CBC algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -174,16 +181,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesCbcEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesCbcDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCtrCrypt">AesCtrCrypt</span>
<p>Encrypt or decrypt data with key use AES CTR algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -205,17 +215,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesCtrCrypt([]byte(data), []byte(key))
decrypted := cryptor.AesCtrCrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCfbEncrypt">AesCfbEncrypt</span>
<p>Encrypt data with key use AES CFB algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -237,15 +249,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesCfbEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
decrypted := cryptor.AesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCfbDecrypt">AesCfbDecrypt</span>
<p>Decrypt data with key use AES CBC algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -267,16 +283,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesCfbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesOfbEncrypt">AesOfbEncrypt</span>
<p>Enecrypt data with key use AES OFB algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -298,15 +317,18 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesOfbEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
decrypted := cryptor.AesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="AesCfbDecrypt">AesOfbDecrypt</span>
<p>Decrypt data with key use AES OFB algorithm. Length of `key` param should be 16, 24 or 32.</p>
@@ -328,17 +350,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefghijklmnop"
encrypted := cryptor.AesOfbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.AesOfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
decrypted := cryptor.AesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="Base64StdEncode">Base64StdEncode</span>
<p>Encode string with base64 encoding.</p>
@@ -359,13 +383,13 @@ import (
)
func main() {
base64Str := cryptor.Base64StdEncode("hello world")
fmt.Println(base64Str) //aGVsbG8gd29ybGQ=
base64Str := cryptor.Base64StdEncode("hello")
fmt.Println(base64Str)
// Output:
// aGVsbG8=
}
```
### <span id="Base64StdDecode">Base64StdDecode</span>
<p>Decode a base64 encoded string.</p>
@@ -387,13 +411,14 @@ import (
)
func main() {
str := cryptor.Base64StdDecode("aGVsbG8gd29ybGQ=")
fmt.Println(str) //hello world
str := cryptor.Base64StdDecode("aGVsbG8=")
fmt.Println(str)
// Output:
// hello
}
```
### <span id="DesEcbEncrypt">DesEcbEncrypt</span>
<p>Encrypt data with key use DES ECB algorithm. Length of `key` param should be 8.</p>
@@ -415,16 +440,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesEcbEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
decrypted := cryptor.DesEcbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesEcbDecrypt">DesEcbDecrypt</span>
<p>Decrypt data with key use DES ECB algorithm. Length of `key` param should be 8.</p>
@@ -446,17 +474,20 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesEcbEncrypt([]byte(data), []byt(key)
encrypted := cryptor.DesEcbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesEcbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesCbcEncrypt">DesCbcEncrypt</span>
<p>Encrypt data with key use DES CBC algorithm. Length of `key` param should be 8.</p>
@@ -478,16 +509,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesCbcEncrypt([]byte(data), []byt(key)
fmt.Println(string(encrypted))
encrypted := cryptor.DesCbcEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesCbcDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesCbcDecrypt">DesCbcDecrypt</span>
<p>Decrypt data with key use DES CBC algorithm. Length of `key` param should be 8.</p>
@@ -509,17 +543,18 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesCbcEncrypt([]byte(data), []byt(key)
decrypted := cryptor.DesCbcDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
encrypted := cryptor.DesCbcEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesCbcDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesCtrCrypt">DesCtrCrypt</span>
<p>Encrypt or decrypt data with key use DES CTR algorithm. Length of `key` param should be 8.</p>
@@ -541,17 +576,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesCtrCrypt([]byte(data), []byte(key))
decrypted := cryptor.DesCtrCrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesCfbEncrypt">DesCfbEncrypt</span>
<p>Encrypt data with key use DES CFB algorithm. Length of `key` param should be 8.</p>
@@ -573,15 +610,18 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesCfbEncrypt([]byte(data), []byt(key)
fmt.Println(string(encrypted))
encrypted := cryptor.DesCfbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesCfbDecrypt">DesCfbDecrypt</span>
<p>Decrypt data with key use DES CBC algorithm. Length of `key` param should be 8.</p>
@@ -603,16 +643,18 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesCfbEncrypt([]byte(data), []byt(key)
encrypted := cryptor.DesCfbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesCfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesOfbEncrypt">DesOfbEncrypt</span>
<p>Enecrypt data with key use DES OFB algorithm. Length of `key` param should be 8.</p>
@@ -634,15 +676,18 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesOfbEncrypt([]byte(data), []byte(key))
fmt.Println(string(encrypted))
decrypted := cryptor.DesOfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="DesOfbDecrypt">DesOfbDecrypt</span>
<p>Decrypt data with key use DES OFB algorithm. Length of `key` param should be 8.</p>
@@ -664,17 +709,19 @@ import (
)
func main() {
data := "hello world"
data := "hello"
key := "abcdefgh"
encrypted := cryptor.DesOfbEncrypt([]byte(data), []byte(key))
decrypted := cryptor.DesOfbDecrypt(encrypted, []byte(key))
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="HmacMd5">HmacMd5</span>
<p>Get the md5 hmac hash of string.</p>
@@ -696,13 +743,16 @@ import (
)
func main() {
s := cryptor.HmacMd5("hello world", "12345"))
fmt.Println(s) //5f4c9faaff0a1ad3007d9ddc06abe36d
str := "hello"
key := "12345"
hms := cryptor.HmacMd5(str, key)
fmt.Println(hms)
// Output:
// e834306eab892d872525d4918a7a639a
}
```
### <span id="HmacSha1">HmacSha1</span>
<p>Get the sha1 hmac hash of string.</p>
@@ -724,13 +774,16 @@ import (
)
func main() {
s := cryptor.HmacSha1("hello world", "12345"))
fmt.Println(s) //3826f812255d8683f051ee97346d1359234d5dbd
str := "hello"
key := "12345"
hms := cryptor.HmacSha1(str, key)
fmt.Println(hms)
// Output:
// 5c6a9db0cccb92e36ed0323fd09b7f936de9ace0
}
```
### <span id="HmacSha256">HmacSha256</span>
<p>Get the sha256 hmac hash of string</p>
@@ -752,13 +805,17 @@ import (
)
func main() {
s := cryptor.HmacSha256("hello world", "12345"))
fmt.Println(s) //9dce2609f2d67d41f74c7f9efc8ccd44370d41ad2de52982627588dfe7289ab8
str := "hello"
key := "12345"
hms := cryptor.HmacSha256(str, key)
fmt.Println(hms)
// Output:
// 315bb93c4e989862ba09cb62e05d73a5f376cb36f0d786edab0c320d059fde75
}
```
### <span id="HmacSha512">HmacSha512</span>
<p>Get the sha512 hmac hash of string.</p>
@@ -780,14 +837,18 @@ import (
)
func main() {
s := cryptor.HmacSha512("hello world", "12345"))
fmt.Println(s)
//5b1563ac4e9b49c9ada8ccb232588fc4f0c30fd12f756b3a0b95af4985c236ca60925253bae10ce2c6bf9af1c1679b51e5395ff3d2826c0a2c7c0d72225d4175
str := "hello"
key := "12345"
hms := cryptor.HmacSha512(str, key)
fmt.Println(hms)
// Output:
// dd8f1290a9dd23d354e2526d9a2e9ce8cffffdd37cb320800d1c6c13d2efc363288376a196c5458daf53f8e1aa6b45a6d856303d5c0a2064bff9785861d48cfc
}
```
### <span id="Md5String">Md5String</span>
<p>Get the md5 value of string.</p>
@@ -809,13 +870,16 @@ import (
)
func main() {
s := cryptor.Md5String("hello"))
fmt.Println(s) //5d41402abc4b2a76b9719d911017c592
str := "hello"
md5Str := cryptor.Md5String(str)
fmt.Println(md5Str)
// Output:
// 5d41402abc4b2a76b9719d911017c592
}
```
### <span id="Md5File">Md5File</span>
<p>Get the md5 value of file.</p>
@@ -842,8 +906,6 @@ func main() {
}
```
### <span id="Sha1">Sha1</span>
<p>Get the sha1 value of string.</p>
@@ -865,13 +927,16 @@ import (
)
func main() {
s := cryptor.Sha1("hello world"))
fmt.Println(s) //2aae6c35c94fcfb415dbe95f408b9ce91ee846ed
str := "hello"
result := cryptor.Sha1(str)
fmt.Println(result)
// Output:
// aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d
}
```
### <span id="Sha256">Sha256</span>
<p>Get the sha256 value of string.</p>
@@ -893,13 +958,16 @@ import (
)
func main() {
s := cryptor.Sha256("hello world"))
fmt.Println(s) //b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9
str := "hello"
result := cryptor.Sha256(str)
fmt.Println(result)
// Output:
// 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
}
```
### <span id="Sha512">Sha512</span>
<p>Get the sha512 value of string.</p>
@@ -921,13 +989,16 @@ import (
)
func main() {
s := cryptor.Sha512("hello world"))
fmt.Println(s) //309ecc489c12d6eb4cc40f50c902f2b4d0ed77ee511a7c7a9bcd3ca86d4cd86f989dd35bc5ff499670da34255b45b0cfd830e81f605dcf7dc5542e93ae9cd76f
str := "hello"
result := cryptor.Sha512(str)
fmt.Println(result)
// Output:
// 9b71d224bd62f3785d96d46ad3ea3d73319bfbc2890caadae2dff72519673ca72323c3d99ba5c11d7c7acc6e14b8c5da0c4663475c2e5c3adef46f73bcdec043
}
```
### <span id="GenerateRsaKey">GenerateRsaKey</span>
<p>Create the rsa public and private key file in current directory.</p>
@@ -956,8 +1027,6 @@ func main() {
}
```
### <span id="RsaEncrypt">RsaEncrypt</span>
<p>Encrypt data with public key file useing ras algorithm.</p>
@@ -981,19 +1050,21 @@ import (
func main() {
err := cryptor.GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
if err != nil {
fmt.Println(err)
return
}
data := []byte("hello world")
data := []byte("hello")
encrypted := cryptor.RsaEncrypt(data, "rsa_public.pem")
decrypted := cryptor.RsaDecrypt(encrypted, "rsa_private.pem")
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```
### <span id="RsaDecrypt">RsaDecrypt</span>
<p>Decrypt data with private key file useing ras algorithm.</p>
@@ -1017,14 +1088,17 @@ import (
func main() {
err := cryptor.GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
if err != nil {
fmt.Println(err)
return
}
data := []byte("hello world")
data := []byte("hello")
encrypted := cryptor.RsaEncrypt(data, "rsa_public.pem")
decrypted := cryptor.RsaDecrypt(encrypted, "rsa_private.pem")
fmt.Println(string(decrypted)) //hello world
fmt.Println(string(decrypted))
// Output:
// hello
}
```

File diff suppressed because it is too large Load Diff

View File

@@ -1,16 +1,18 @@
# Datetime
Package datetime supports date and time format and compare.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/datetime/datetime.go](https://github.com/duke-git/lancet/blob/main/datetime/datetime.go)
- [https://github.com/duke-git/lancet/blob/main/datetime/conversion.go](https://github.com/duke-git/lancet/blob/main/datetime/conversion.go)
- [https://github.com/duke-git/lancet/blob/main/datetime/datetime.go](https://github.com/duke-git/lancet/blob/main/datetime/datetime.go)
- [https://github.com/duke-git/lancet/blob/main/datetime/conversion.go](https://github.com/duke-git/lancet/blob/main/datetime/conversion.go)
<div STYLE="page-break-after: always;"></div>
## Usage:
```go
import (
"github.com/duke-git/lancet/v2/datetime"
@@ -20,66 +22,67 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [AddDay](#AddDay)
- [AddHour](#AddHour)
- [AddMinute](#AddMinute)
- [BeginOfMinute](#BeginOfMinute)
- [BeginOfHour](#BeginOfHour)
- [BeginOfDay](#BeginOfDay)
- [BeginOfWeek](#BeginOfWeek)
- [BeginOfMonth](#BeginOfMonth)
- [BeginOfYear](#BeginOfYear)
- [EndOfMinute](#EndOfMinute)
- [EndOfHour](#EndOfHour)
- [EndOfDay](#EndOfDay)
- [EndOfWeek](#EndOfWeek)
- [EndOfMonth](#EndOfMonth)
- [EndOfYear](#EndOfYear)
- [GetNowDate](#GetNowDate)
- [GetNowTime](#GetNowTime)
- [GetNowDateTime](#GetNowDateTime)
- [GetZeroHourTimestamp](#GetZeroHourTimestamp)
- [GetNightTimestamp](#GetNightTimestamp)
- [FormatTimeToStr](#FormatTimeToStr)
- [FormatStrToTime](#FormatStrToTime)
- [NewUnixNow](#NewUnixNow)
- [NewUnix](#NewUnix)
- [NewFormat](#NewFormat)
- [NewISO8601](#NewISO8601)
- [ToUnix](#ToUnix)
- [ToFormat](#ToFormat)
- [ToFormatForTpl](#ToFormatForTpl)
- [ToIso8601](#ToIso8601)
- [AddDay](#AddDay)
- [AddHour](#AddHour)
- [AddMinute](#AddMinute)
- [BeginOfMinute](#BeginOfMinute)
- [BeginOfHour](#BeginOfHour)
- [BeginOfDay](#BeginOfDay)
- [BeginOfWeek](#BeginOfWeek)
- [BeginOfMonth](#BeginOfMonth)
- [BeginOfYear](#BeginOfYear)
- [EndOfMinute](#EndOfMinute)
- [EndOfHour](#EndOfHour)
- [EndOfDay](#EndOfDay)
- [EndOfWeek](#EndOfWeek)
- [EndOfMonth](#EndOfMonth)
- [EndOfYear](#EndOfYear)
- [GetNowDate](#GetNowDate)
- [GetNowTime](#GetNowTime)
- [GetNowDateTime](#GetNowDateTime)
- [GetZeroHourTimestamp](#GetZeroHourTimestamp)
- [GetNightTimestamp](#GetNightTimestamp)
- [FormatTimeToStr](#FormatTimeToStr)
- [FormatStrToTime](#FormatStrToTime)
- [NewUnixNow](#NewUnixNow)
- [NewUnix](#NewUnix)
- [NewFormat](#NewFormat)
- [NewISO8601](#NewISO8601)
- [ToUnix](#ToUnix)
- [ToFormat](#ToFormat)
- [ToFormatForTpl](#ToFormatForTpl)
- [ToIso8601](#ToIso8601)
<div STYLE="page-break-after: always;"></div>
## Documentation
## Note:
1. 'format' string param in func FormatTimeToStr and FormatStrToTime function should be one of flows:
- yyyy-mm-dd hh:mm:ss
- yyyy-mm-dd hh:mm
- yyyy-mm-dd hh
- yyyy-mm-dd
- yyyy-mm
- mm-dd
- dd-mm-yy hh:mm:ss
- yyyy/mm/dd hh:mm:ss
- yyyy/mm/dd hh:mm
- yyyy-mm-dd hh
- yyyy/mm/dd
- yyyy/mm
- mm/dd
- dd/mm/yy hh:mm:ss
- yyyy
- mm
- hh:mm:ss
- mm:ss
1. 'format' string param in func FormatTimeToStr and FormatStrToTime function should be one of flows:
- yyyy-mm-dd hh:mm:ss
- yyyy-mm-dd hh:mm
- yyyy-mm-dd hh
- yyyy-mm-dd
- yyyy-mm
- mm-dd
- dd-mm-yy hh:mm:ss
- yyyy/mm/dd hh:mm:ss
- yyyy/mm/dd hh:mm
- yyyy-mm-dd hh
- yyyy/mm/dd
- yyyy/mm
- mm/dd
- dd/mm/yy hh:mm:ss
- yyyy
- mm
- hh:mm:ss
- mm:ss
### <span id="AddDay">AddDay</span>
<p>Add or sub days to time.</p>
<b>Signature:</b>
@@ -87,6 +90,7 @@ import (
```go
func AddDay(t time.Time, day int64) time.Time
```
<b>Example:</b>
```go
@@ -100,15 +104,24 @@ import (
func main() {
now := time.Now()
after2Days := datetime.AddDay(now, 2)
before2Days := datetime.AddDay(now, -2)
fmt.Println(after2Days, before2Days)
tomorrow := datetime.AddDay(now, 1)
diff1 := tomorrow.Sub(now)
yesterday := datetime.AddDay(now, -1)
diff2 := yesterday.Sub(now)
fmt.Println(diff1)
fmt.Println(diff2)
// Output:
// 24h0m0s
// -24h0m0s
}
```
### <span id="AddHour">AddHour</span>
<p>Add or sub hours to time.</p>
<b>Signature:</b>
@@ -116,6 +129,7 @@ func main() {
```go
func AddHour(t time.Time, hour int64) time.Time
```
<b>Example:</b>
```go
@@ -129,14 +143,24 @@ import (
func main() {
now := time.Now()
after2Hours := datetime.AddHour(now, 2)
before2Hours := datetime.AddHour(now, -2)
fmt.Println(after2Hours, after2Hours)
after2Hours := datetime.AddHour(now, 2)
diff1 := after2Hours.Sub(now)
before2Hours := datetime.AddHour(now, -2)
diff2 := before2Hours.Sub(now)
fmt.Println(diff1)
fmt.Println(diff2)
// Output:
// 2h0m0s
// -2h0m0s
}
```
### <span id="AddMinute">AddMinute</span>
<p>Add or sub minutes to time.</p>
<b>Signature:</b>
@@ -144,6 +168,7 @@ func main() {
```go
func AddMinute(t time.Time, minute int64) time.Time
```
<b>Example:</b>
```go
@@ -157,14 +182,24 @@ import (
func main() {
now := time.Now()
after2Minute := datetime.AddMinute(now, 2)
before2Minute := datetime.AddMinute(now, -2)
fmt.Println(after2Minute, before2Minute)
after2Minutes := datetime.AddMinute(now, 2)
diff1 := after2Minutes.Sub(now)
before2Minutes := datetime.AddMinute(now, -2)
diff2 := before2Minutes.Sub(now)
fmt.Println(diff1)
fmt.Println(diff2)
// Output:
// 2m0s
// -2m0s
}
```
### <span id="BeginOfMinute">BeginOfMinute</span>
<p>Return beginning minute time of day.</p>
<b>Signature:</b>
@@ -172,6 +207,7 @@ func main() {
```go
func BeginOfMinute(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -184,13 +220,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfMinute(td)
fmt.Println(bm) //2022-02-15 15:48:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfMinute(input)
fmt.Println(result)
// Output:
// 2023-01-08 18:50:00 +0000 UTC
}
```
### <span id="BeginOfHour">BeginOfHour</span>
<p>Return zero time of day.</p>
<b>Signature:</b>
@@ -198,6 +239,7 @@ func main() {
```go
func BeginOfHour(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -210,13 +252,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfHour(td)
fmt.Println(bm) //2022-02-15 15:00:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfHour(input)
fmt.Println(result)
// Output:
// 2023-01-08 18:00:00 +0000 UTC
}
```
### <span id="BeginOfDay">BeginOfDay</span>
<p>Return begin time of day.</p>
<b>Signature:</b>
@@ -224,6 +271,7 @@ func main() {
```go
func BeginOfDay(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -236,15 +284,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfDay(td)
fmt.Println(bm) //2022-02-15 00:00:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfDay(input)
fmt.Println(result)
// Output:
// 2023-01-08 00:00:00 +0000 UTC
}
```
### <span id="BeginOfWeek">BeginOfWeek</span>
<p>Return beginning time of week, week begin from Sunday.</p>
<b>Signature:</b>
@@ -252,6 +303,7 @@ func main() {
```go
func BeginOfWeek(t time.Time, beginFrom ...time.Weekday) time.Time
```
<b>Example:</b>
```go
@@ -264,15 +316,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfWeek(td)
fmt.Println(bm) //2022-02-13 00:00:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfWeek(input)
fmt.Println(result)
// Output:
// 2023-01-08 00:00:00 +0000 UTC
}
```
### <span id="BeginOfMonth">BeginOfMonth</span>
<p>Return beginning time of month</p>
<b>Signature:</b>
@@ -280,6 +335,7 @@ func main() {
```go
func BeginOfMonth(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -292,14 +348,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfMonth(td)
fmt.Println(bm) //2022-02-01 00:00:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfMonth(input)
fmt.Println(result)
// Output:
// 2023-01-01 00:00:00 +0000 UTC
}
```
### <span id="BeginOfYear">BeginOfYear</span>
<p>Return beginning time of year.</p>
<b>Signature:</b>
@@ -307,6 +367,7 @@ func main() {
```go
func BeginOfYear(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -319,15 +380,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.BeginOfYear(td)
fmt.Println(bm) //2022-01-01 00:00:00 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.BeginOfYear(input)
fmt.Println(result)
// Output:
// 2023-01-01 00:00:00 +0000 UTC
}
```
### <span id="EndOfMinute">EndOfMinute</span>
<p>Return end time minute of day.</p>
<b>Signature:</b>
@@ -335,6 +399,7 @@ func main() {
```go
func EndOfMinute(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -347,13 +412,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfMinute(td)
fmt.Println(bm) //2022-02-15 15:48:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfMinute(input)
fmt.Println(result)
// Output:
// 2023-01-08 18:50:59.999999999 +0000 UTC
}
```
### <span id="EndOfHour">EndOfHour</span>
<p>Return end time hour of day.</p>
<b>Signature:</b>
@@ -361,6 +431,7 @@ func main() {
```go
func EndOfHour(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -373,13 +444,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfHour(td)
fmt.Println(bm) //2022-02-15 15:59:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfHour(input)
fmt.Println(result)
// Output:
// 2023-01-08 18:59:59.999999999 +0000 UTC
}
```
### <span id="EndOfDay">EndOfDay</span>
<p>Return end time hour of day.</p>
<b>Signature:</b>
@@ -387,6 +463,7 @@ func main() {
```go
func EndOfDay(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -399,15 +476,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfDay(td)
fmt.Println(bm) //2022-02-15 23:59:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfDay(input)
fmt.Println(result)
// Output:
// 2023-01-08 23:59:59.999999999 +0000 UTC
}
```
### <span id="EndOfWeek">EndOfWeek</span>
<p>Return end time of week, week end with Saturday.</p>
<b>Signature:</b>
@@ -415,6 +495,7 @@ func main() {
```go
func EndOfWeek(t time.Time, endWith ...time.Weekday) time.Time
```
<b>Example:</b>
```go
@@ -427,15 +508,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfWeek(td)
fmt.Println(bm) //2022-02-19 23:59:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfWeek(input)
fmt.Println(result)
// Output:
// 2023-01-14 23:59:59.999999999 +0000 UTC
}
```
### <span id="EndOfMonth">EndOfMonth</span>
<p>Return end time of month</p>
<b>Signature:</b>
@@ -443,6 +527,7 @@ func main() {
```go
func EndOfMonth(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -455,14 +540,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfMonth(td)
fmt.Println(bm) //2022-02-28 23:59:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfMonth(input)
fmt.Println(result)
// Output:
// 2023-01-31 23:59:59.999999999 +0000 UTC
}
```
### <span id="EndOfYear">EndOfYear</span>
<p>Return beginning time of year.</p>
<b>Signature:</b>
@@ -470,6 +559,7 @@ func main() {
```go
func EndOfYear(t time.Time) time.Time
```
<b>Example:</b>
```go
@@ -482,14 +572,18 @@ import (
)
func main() {
td := time.Date(2022, 2, 15, 15, 48, 40, 112, time.Local)
bm := datetime.EndOfYear(td)
fmt.Println(bm) //2022-12-31 23:59:59.999999999 +0800 CST
input := time.Date(2023, 1, 8, 18, 50, 10, 100, time.UTC)
result := datetime.EndOfYear(input)
fmt.Println(result)
// Output:
// 2023-12-31 23:59:59.999999999 +0000 UTC
}
```
### <span id="GetNowDate">GetNowDate</span>
<p>Get current date string, format is yyyy-mm-dd.</p>
<b>Signature:</b>
@@ -497,6 +591,7 @@ func main() {
```go
func GetNowDate() string
```
<b>Example:</b>
```go
@@ -511,12 +606,16 @@ import (
func main() {
now := time.Now()
currentDate := datetime.GetNowDate()
fmt.Println(currentDate) // 2022-01-28
fmt.Println(currentDate)
// Output:
// 2022-01-28
}
```
### <span id="GetNowTime">GetNowTime</span>
<p>Get current time string, format is hh:mm:ss.</p>
<b>Signature:</b>
@@ -524,6 +623,7 @@ func main() {
```go
func GetNowTime() string
```
<b>Example:</b>
```go
@@ -538,12 +638,16 @@ import (
func main() {
now := time.Now()
currentTime := datetime.GetNowTime()
fmt.Println(currentDate) // 15:57:33
fmt.Println(currentTime) // 15:57:33
// Output:
// 15:57:33
}
```
### <span id="GetNowDateTime">GetNowDateTime</span>
<p>Get current date time string, format is yyyy-mm-dd hh:mm:ss.</p>
<b>Signature:</b>
@@ -551,6 +655,7 @@ func main() {
```go
func GetNowDateTime() string
```
<b>Example:</b>
```go
@@ -565,12 +670,16 @@ import (
func main() {
now := time.Now()
current := datetime.GetNowDateTime()
fmt.Println(current) // 2022-01-28 15:59:33
fmt.Println(current)
// Output:
// 2022-01-28 15:59:33
}
```
### <span id="GetZeroHourTimestamp">GetZeroHourTimestamp</span>
<p>Return timestamp of zero hour (timestamp of 00:00).</p>
<b>Signature:</b>
@@ -578,6 +687,7 @@ func main() {
```go
func GetZeroHourTimestamp() int64
```
<b>Example:</b>
```go
@@ -592,12 +702,16 @@ import (
func main() {
now := time.Now()
zeroTime := datetime.GetZeroHourTimestamp()
fmt.Println(zeroTime) // 1643299200
fmt.Println(zeroTime)
// Output:
// 1643299200
}
```
### <span id="GetNightTimestamp">GetNightTimestamp</span>
<p>Return timestamp of zero hour (timestamp of 23:59).</p>
<b>Signature:</b>
@@ -605,6 +719,7 @@ func main() {
```go
func GetNightTimestamp() int64
```
<b>Example:</b>
```go
@@ -619,11 +734,16 @@ import (
func main() {
now := time.Now()
nightTime := datetime.GetNightTimestamp()
fmt.Println(nightTime) // 1643385599
fmt.Println(nightTime)
// Output:
// 1643385599
}
```
### <span id="FormatTimeToStr">FormatTimeToStr</span>
<p>Format time to string, `format` param specification see note 1.</p>
<b>Signature:</b>
@@ -631,6 +751,7 @@ func main() {
```go
func FormatTimeToStr(t time.Time, format string) string
```
<b>Example:</b>
```go
@@ -643,14 +764,25 @@ import (
)
func main() {
now := time.Now()
timeStr := datetime.FormatTimeToStr(now, "yyyy/mm/dd hh:mm:ss")
fmt.Println(timeStr) //2022/01/28 16:07:44
t, _ := time.Parse("2006-01-02 15:04:05", "2021-01-02 16:04:08")
result1 := datetime.FormatTimeToStr(t, "yyyy-mm-dd hh:mm:ss")
result2 := datetime.FormatTimeToStr(t, "yyyy-mm-dd")
result3 := datetime.FormatTimeToStr(t, "dd-mm-yy hh:mm:ss")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 2021-01-02 16:04:08
// 2021-01-02
// 02-01-21 16:04:08
}
```
### <span id="FormatStrToTime">FormatStrToTime</span>
<p>Format string to time, `format` param specification see note 1.</p>
<b>Signature:</b>
@@ -658,6 +790,7 @@ func main() {
```go
func FormatStrToTime(str, format string) (time.Time, error)
```
<b>Example:</b>
```go
@@ -669,24 +802,34 @@ import (
)
func main() {
time := datetime.FormatStrToTime("2006-01-02 15:04:05", "yyyy/mm/dd hh:mm:ss")
fmt.Println(time)
result1, _ := datetime.FormatStrToTime("2021-01-02 16:04:08", "yyyy-mm-dd hh:mm:ss")
result2, _ := datetime.FormatStrToTime("2021-01-02", "yyyy-mm-dd")
result3, _ := datetime.FormatStrToTime("02-01-21 16:04:08", "dd-mm-yy hh:mm:ss")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 2021-01-02 16:04:08 +0000 UTC
// 2021-01-02 00:00:00 +0000 UTC
// 2021-01-02 16:04:08 +0000 UTC
}
```
### <span id="NewUnixNow">NewUnixNow</span>
<p>Return unix timestamp of current time</p>
<b>Signature:</b>
```go
type theTime struct {
unix int64
unix int64
}
func NewUnixNow() *theTime
```
<b>Example:</b>
```go
@@ -699,12 +842,15 @@ import (
func main() {
tm := datetime.NewUnixNow()
fmt.Println(tm) //&{1647597438}
fmt.Println(tm)
// Output:
// &{1647597438}
}
```
### <span id="NewUnix">NewUnix</span>
<p>Return unix timestamp of specified int64 value.</p>
<b>Signature:</b>
@@ -715,6 +861,7 @@ type theTime struct {
}
func NewUnix(unix int64) *theTime
```
<b>Example:</b>
```go
@@ -727,13 +874,15 @@ import (
func main() {
tm := datetime.NewUnix(1647597438)
fmt.Println(tm) //&{1647597438}
fmt.Println(tm)
// Output:
// &{1647597438}
}
```
### <span id="NewFormat">NewFormat</span>
<p>Return unix timestamp of specified time string, t should be "yyyy-mm-dd hh:mm:ss".</p>
<b>Signature:</b>
@@ -744,6 +893,7 @@ type theTime struct {
}
func NewFormat(t string) (*theTime, error)
```
<b>Example:</b>
```go
@@ -756,14 +906,15 @@ import (
func main() {
tm, err := datetime.NewFormat("2022-03-18 17:04:05")
fmt.Println(tm) //&{1647594245}
fmt.Println(tm)
// Output:
// &{1647594245}
}
```
### <span id="NewISO8601">NewISO8601</span>
<p>Return unix timestamp of specified iso8601 time string.</p>
<b>Signature:</b>
@@ -774,6 +925,7 @@ type theTime struct {
}
func NewISO8601(iso8601 string) (*theTime, error)
```
<b>Example:</b>
```go
@@ -786,13 +938,15 @@ import (
func main() {
tm, err := datetime.NewISO8601("2006-01-02T15:04:05.999Z")
fmt.Println(tm) //&{1136214245}
fmt.Println(tm)
// Output:
// &{1136214245}
}
```
### <span id="ToUnix">ToUnix</span>
<p>Return unix timestamp.</p>
<b>Signature:</b>
@@ -800,6 +954,7 @@ func main() {
```go
func (t *theTime) ToUnix() int64
```
<b>Example:</b>
```go
@@ -812,13 +967,15 @@ import (
func main() {
tm := datetime.NewUnixNow()
fmt.Println(tm.ToUnix()) //1647597438
fmt.Println(tm.ToUnix())
// Output:
// 1647597438
}
```
### <span id="ToFormat">ToFormat</span>
<p>Return time string 'yyyy-mm-dd hh:mm:ss'.</p>
<b>Signature:</b>
@@ -826,6 +983,7 @@ func main() {
```go
func (t *theTime) ToFormat() string
```
<b>Example:</b>
```go
@@ -838,13 +996,15 @@ import (
func main() {
tm, _ := datetime.NewFormat("2022-03-18 17:04:05")
fmt.Println(tm.ToFormat()) //"2022-03-18 17:04:05"
fmt.Println(tm.ToFormat())
// Output:
// 2022-03-18 17:04:05
}
```
### <span id="ToFormatForTpl">ToFormatForTpl</span>
<p>Return the time string which format is specified tpl.</p>
<b>Signature:</b>
@@ -852,6 +1012,7 @@ func main() {
```go
func (t *theTime) ToFormatForTpl(tpl string) string
```
<b>Example:</b>
```go
@@ -865,12 +1026,15 @@ import (
func main() {
tm, _ := datetime.NewFormat("2022-03-18 17:04:05")
ts := tm.ToFormatForTpl("2006/01/02 15:04:05")
fmt.Println(ts) //"2022/03/18 17:04:05"
fmt.Println(ts)
// Output:
// 2022/03/18 17:04:05
}
```
### <span id="ToIso8601">ToIso8601</span>
<p>Return iso8601 time string.</p>
<b>Signature:</b>
@@ -878,6 +1042,7 @@ func main() {
```go
func (t *theTime) ToIso8601() string
```
<b>Example:</b>
```go
@@ -891,6 +1056,9 @@ import (
func main() {
tm, _ := datetime.NewISO8601("2006-01-02T15:04:05.999Z")
ts := tm.ToIso8601()
fmt.Println(ts) //"2006-01-02T23:04:05+08:00"
fmt.Println(ts)
// Output:
// 2006-01-02T23:04:05+08:00
}
```
```

File diff suppressed because it is too large Load Diff

View File

@@ -1,15 +1,17 @@
# Fileutil
Package fileutil implements some basic functions for file operations.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/fileutil/file.go](https://github.com/duke-git/lancet/blob/main/fileutil/file.go)
- [https://github.com/duke-git/lancet/blob/main/fileutil/file.go](https://github.com/duke-git/lancet/blob/main/fileutil/file.go)
<div STYLE="page-break-after: always;"></div>
## Usage:
```go
import (
"github.com/duke-git/lancet/v2/fileutil"
@@ -19,30 +21,30 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [ClearFile](#ClearFile)
- [CreateFile](#CreateFile)
- [CreateDir](#CreateDir)
- [CopyFile](#CopyFile)
- [FileMode](#FileMode)
- [MiMeType](#MiMeType)
- [IsExist](#IsExist)
- [IsLink](#IsLink)
- [IsDir](#IsDir)
- [ListFileNames](#ListFileNames)
- [RemoveFile](#RemoveFile)
- [ReadFileToString](#ReadFileToString)
- [ReadFileByLine](#ReadFileByLine)
- [Zip](#Zip)
- [UnZip](#UnZip)
- [UnZip](#UnZip)
- [ClearFile](#ClearFile)
- [CreateFile](#CreateFile)
- [CreateDir](#CreateDir)
- [CopyFile](#CopyFile)
- [FileMode](#FileMode)
- [MiMeType](#MiMeType)
- [IsExist](#IsExist)
- [IsLink](#IsLink)
- [IsDir](#IsDir)
- [ListFileNames](#ListFileNames)
- [RemoveFile](#RemoveFile)
- [ReadFileToString](#ReadFileToString)
- [ReadFileByLine](#ReadFileByLine)
- [Zip](#Zip)
- [UnZip](#UnZip)
- [UnZip](#UnZip)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="ClearFile">ClearFile</span>
<p>Clear the file content, write empty string to the file.</p>
<b>Signature:</b>
@@ -50,6 +52,7 @@ import (
```go
func ClearFile(path string) error
```
<b>Example:</b>
```go
@@ -69,6 +72,7 @@ func main() {
```
### <span id="CreateFile">CreateFile</span>
<p>Create file in path. return true if create succeed.</p>
<b>Signature:</b>
@@ -76,6 +80,7 @@ func main() {
```go
func CreateFile(path string) bool
```
<b>Example:</b>
```go
@@ -92,9 +97,8 @@ func main() {
}
```
### <span id="CreateDir">CreateDir</span>
<p>Create directory in absolute path. param `absPath` like /a/, /a/b/.</p>
<b>Signature:</b>
@@ -102,6 +106,7 @@ func main() {
```go
func CreateDir(absPath string) error
```
<b>Example:</b>
```go
@@ -118,8 +123,8 @@ func main() {
}
```
### <span id="CopyFile">CopyFile</span>
<p>Copy src file to dest file. If dest file exist will overwrite it.</p>
<b>Signature:</b>
@@ -127,6 +132,7 @@ func main() {
```go
func CopyFile(srcFilePath string, dstFilePath string) error
```
<b>Example:</b>
```go
@@ -145,9 +151,8 @@ func main() {
}
```
### <span id="FileMode">FileMode</span>
<p>Return file mode infomation.</p>
<b>Signature:</b>
@@ -155,6 +160,7 @@ func main() {
```go
func FileMode(path string) (fs.FileMode, error)
```
<b>Example:</b>
```go
@@ -174,9 +180,8 @@ func main() {
}
```
### <span id="MiMeType">MiMeType</span>
<p>Get file mime type, 'file' param's type should be string or *os.File.</p>
<b>Signature:</b>
@@ -184,6 +189,7 @@ func main() {
```go
func MiMeType(file any) string
```
<b>Example:</b>
```go
@@ -205,10 +211,8 @@ func main() {
}
```
### <span id="IsExist">IsExist</span>
<p>Checks if a file or directory exists.</p>
<b>Signature:</b>
@@ -216,6 +220,7 @@ func main() {
```go
func IsExist(path string) bool
```
<b>Example:</b>
```go
@@ -233,9 +238,8 @@ func main() {
}
```
### <span id="IsLink">IsLink</span>
<p>Checks if a file is symbol link or not.</p>
<b>Signature:</b>
@@ -243,6 +247,7 @@ func main() {
```go
func IsLink(path string) bool
```
<b>Example:</b>
```go
@@ -259,16 +264,16 @@ func main() {
}
```
### <span id="IsDir">IsDir</span>
<p>Checks if the path is directy or not.</p>
<b>Signature:</b>
```go
func IsDir(path string) bool
func IsDir(path string) bool
```
<b>Example:</b>
```go
@@ -288,9 +293,8 @@ func main() {
}
```
### <span id="ListFileNames">ListFileNames</span>
<p>List all file names in given path.</p>
<b>Signature:</b>
@@ -298,6 +302,7 @@ func main() {
```go
func ListFileNames(path string) ([]string, error)
```
<b>Example:</b>
```go
@@ -314,9 +319,8 @@ func main() {
}
```
### <span id="RemoveFile">RemoveFile</span>
<p>Remove the file of path.</p>
<b>Signature:</b>
@@ -324,6 +328,7 @@ func main() {
```go
func RemoveFile(path string) error
```
<b>Example:</b>
```go
@@ -342,8 +347,8 @@ func main() {
}
```
### <span id="ReadFileToString">ReadFileToString</span>
<p>Return string of file content.</p>
<b>Signature:</b>
@@ -351,6 +356,7 @@ func main() {
```go
func ReadFileToString(path string) (string, error)
```
<b>Example:</b>
```go
@@ -374,9 +380,8 @@ func main() {
}
```
### <span id="ReadFileByLine">ReadFileByLine</span>
<p>Read file line by line, and return slice of lines</p>
<b>Signature:</b>
@@ -384,6 +389,7 @@ func main() {
```go
func ReadFileByLine(path string)([]string, error)
```
<b>Example:</b>
```go
@@ -408,9 +414,8 @@ func main() {
}
```
### <span id="Zip">Zip</span>
<p>Create a zip file of fpath, fpath could be a file or a directory.</p>
<b>Signature:</b>
@@ -418,6 +423,7 @@ func main() {
```go
func Zip(fpath string, destPath string) error
```
<b>Example:</b>
```go
@@ -436,10 +442,8 @@ func main() {
}
```
### <span id="UnZip">UnZip</span>
<p>Unzip the file and save it to dest path.</p>
<b>Signature:</b>
@@ -447,6 +451,7 @@ func main() {
```go
func UnZip(zipFile string, destPath string) error
```
<b>Example:</b>
```go
@@ -464,8 +469,3 @@ func main() {
}
}
```

View File

@@ -1,15 +1,17 @@
# Fileutil
fileutil包支持文件基本操作。
fileutil 包支持文件基本操作。
<div STYLE="page-break-after: always;"></div>
## 源码:
- [https://github.com/duke-git/lancet/blob/main/fileutil/file.go](https://github.com/duke-git/lancet/blob/main/fileutil/file.go)
- [https://github.com/duke-git/lancet/blob/main/fileutil/file.go](https://github.com/duke-git/lancet/blob/main/fileutil/file.go)
<div STYLE="page-break-after: always;"></div>
## 用法:
```go
import (
"github.com/duke-git/lancet/v2/fileutil"
@@ -19,29 +21,29 @@ import (
<div STYLE="page-break-after: always;"></div>
## 目录
- [ClearFile](#ClearFile)
- [CreateFile](#CreateFile)
- [CreateDir](#CreateDir)
- [CopyFile](#CopyFile)
- [FileMode](#FileMode)
- [MiMeType](#MiMeType)
- [IsExist](#IsExist)
- [IsLink](#IsLink)
- [IsDir](#IsDir)
- [ListFileNames](#ListFileNames)
- [RemoveFile](#RemoveFile)
- [ReadFileToString](#ReadFileToString)
- [ReadFileByLine](#ReadFileByLine)
- [Zip](#Zip)
- [UnZip](#UnZip)
- [ClearFile](#ClearFile)
- [CreateFile](#CreateFile)
- [CreateDir](#CreateDir)
- [CopyFile](#CopyFile)
- [FileMode](#FileMode)
- [MiMeType](#MiMeType)
- [IsExist](#IsExist)
- [IsLink](#IsLink)
- [IsDir](#IsDir)
- [ListFileNames](#ListFileNames)
- [RemoveFile](#RemoveFile)
- [ReadFileToString](#ReadFileToString)
- [ReadFileByLine](#ReadFileByLine)
- [Zip](#Zip)
- [UnZip](#UnZip)
<div STYLE="page-break-after: always;"></div>
## 文档
### <span id="ClearFile">ClearFile</span>
<p>清空文件内容</p>
<b>函数签名:</b>
@@ -49,6 +51,7 @@ import (
```go
func ClearFile(path string) error
```
<b>例子:</b>
```go
@@ -68,6 +71,7 @@ func main() {
```
### <span id="CreateFile">CreateFile</span>
<p>创建文件创建成功返回true, 否则返回false</p>
<b>函数签名:</b>
@@ -75,6 +79,7 @@ func main() {
```go
func CreateFile(path string) bool
```
<b>例子:</b>
```go
@@ -91,8 +96,8 @@ func main() {
}
```
### <span id="CreateDir">CreateDir</span>
<p>使用绝对路径创建嵌套目录,例如/a/, /a/b/</p>
<b>函数签名:</b>
@@ -100,6 +105,7 @@ func main() {
```go
func CreateDir(absPath string) error
```
<b>Example:</b>
```go
@@ -116,9 +122,8 @@ func main() {
}
```
### <span id="CopyFile">CopyFile</span>
<p>拷贝文件,会覆盖原有的文件</p>
<b>函数签名:</b>
@@ -126,6 +131,7 @@ func main() {
```go
func CopyFile(srcFilePath string, dstFilePath string) error
```
<b>例子:</b>
```go
@@ -144,9 +150,8 @@ func main() {
}
```
### <span id="FileMode">FileMode</span>
<p>获取文件mode信息</p>
<b>函数签名:</b>
@@ -154,6 +159,7 @@ func main() {
```go
func FileMode(path string) (fs.FileMode, error)
```
<b>例子:</b>
```go
@@ -173,9 +179,8 @@ func main() {
}
```
### <span id="MiMeType">MiMeType</span>
<p>获取文件mime类型, 'file'参数的类型必须是string或者*os.File</p>
<b>函数签名:</b>
@@ -183,6 +188,7 @@ func main() {
```go
func MiMeType(file any) string
```
<b>例子:</b>
```go
@@ -204,10 +210,8 @@ func main() {
}
```
### <span id="IsExist">IsExist</span>
<p>判断文件或目录是否存在</p>
<b>函数签名:</b>
@@ -215,6 +219,7 @@ func main() {
```go
func IsExist(path string) bool
```
<b>例子:</b>
```go
@@ -232,9 +237,8 @@ func main() {
}
```
### <span id="IsLink">IsLink</span>
<p>判断文件是否是符号链接</p>
<b>函数签名:</b>
@@ -242,6 +246,7 @@ func main() {
```go
func IsLink(path string) bool
```
<b>例子:</b>
```go
@@ -258,16 +263,16 @@ func main() {
}
```
### <span id="IsDir">IsDir</span>
<p>判断参数是否是目录</p>
<b>函数签名:</b>
```go
func IsDir(path string) bool
func IsDir(path string) bool
```
<b>例子:</b>
```go
@@ -287,9 +292,8 @@ func main() {
}
```
### <span id="ListFileNames">ListFileNames</span>
<p>返回目录下所有文件名</p>
<b>函数签名:</b>
@@ -297,6 +301,7 @@ func main() {
```go
func ListFileNames(path string) ([]string, error)
```
<b>例子:</b>
```go
@@ -313,9 +318,8 @@ func main() {
}
```
### <span id="RemoveFile">RemoveFile</span>
<p>删除文件</p>
<b>函数签名:</b>
@@ -323,6 +327,7 @@ func main() {
```go
func RemoveFile(path string) error
```
<b>例子:</b>
```go
@@ -341,8 +346,8 @@ func main() {
}
```
### <span id="ReadFileToString">ReadFileToString</span>
<p>读取文件内容并返回字符串</p>
<b>函数签名:</b>
@@ -350,6 +355,7 @@ func main() {
```go
func ReadFileToString(path string) (string, error)
```
<b>例子:</b>
```go
@@ -373,9 +379,8 @@ func main() {
}
```
### <span id="ReadFileByLine">ReadFileByLine</span>
<p>按行读取文件内容,返回字符串切片包含每一行</p>
<b>函数签名:</b>
@@ -383,6 +388,7 @@ func main() {
```go
func ReadFileByLine(path string)([]string, error)
```
<b>例子:</b>
```go
@@ -407,9 +413,8 @@ func main() {
}
```
### <span id="Zip">Zip</span>
<p>zip压缩文件, fpath参数可以是文件或目录</p>
<b>函数签名:</b>
@@ -417,6 +422,7 @@ func main() {
```go
func Zip(fpath string, destPath string) error
```
<b>例子:</b>
```go
@@ -435,10 +441,8 @@ func main() {
}
```
### <span id="UnZip">UnZip</span>
<p>zip解压缩文件并保存在目录中</p>
<b>Signature:</b>
@@ -446,6 +450,7 @@ func main() {
```go
func UnZip(zipFile string, destPath string) error
```
<b>例子:</b>
```go
@@ -463,8 +468,3 @@ func main() {
}
}
```

View File

@@ -1,15 +1,17 @@
# Formatter
formatter contains some functions for data formatting.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
- [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
<div STYLE="page-break-after: always;"></div>
## Usage:
```go
import (
"github.com/duke-git/lancet/v2/formatter"
@@ -19,15 +21,15 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [Comma](#Comma)
- [Comma](#Comma)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="Comma">Comma</span>
<p>Add comma to a number value by every 3 numbers from right to left. ahead by symbol char. if value is a invalid number string like "aa", return empty string.</p>
<b>Signature:</b>
@@ -35,6 +37,7 @@ import (
```go
func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
```
<b>Example:</b>
```go
@@ -46,7 +49,17 @@ import (
)
func main() {
fmt.Println(formatter.Comma("12345", "")) // "12,345"
fmt.Println(formatter.Comma(12345.67, "¥")) // "¥12,345.67"
result1 := formatter.Comma("123", "")
result2 := formatter.Comma("12345", "$")
result3 := formatter.Comma(1234567, "¥")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 123
// $12,345
// ¥1,234,567
}
```

View File

@@ -1,15 +1,17 @@
# Formatter
formatter格式化器包含一些数据格式化处理方法。
formatter 格式化器包含一些数据格式化处理方法。
<div STYLE="page-break-after: always;"></div>
## 源码:
- [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
- [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
<div STYLE="page-break-after: always;"></div>
## 用法:
```go
import (
"github.com/duke-git/lancet/v2/formatter"
@@ -19,15 +21,15 @@ import (
<div STYLE="page-break-after: always;"></div>
## 目录
- [Comma](#Comma)
- [Comma](#Comma)
<div STYLE="page-break-after: always;"></div>
## 文档
### <span id="Comma">Comma</span>
<p>用逗号每隔3位分割数字/字符串支持前缀添加符号。参数value必须是数字或者可以转为数字的字符串, 否则返回空字符串</p>
<b>函数签名:</b>
@@ -35,6 +37,7 @@ import (
```go
func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
```
<b>例子:</b>
```go
@@ -46,7 +49,17 @@ import (
)
func main() {
fmt.Println(formatter.Comma("12345", "")) // "12,345"
fmt.Println(formatter.Comma(12345.67, "¥")) // "¥12,345.67"
result1 := formatter.Comma("123", "")
result2 := formatter.Comma("12345", "$")
result3 := formatter.Comma(1234567, "¥")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 123
// $12,345
// ¥1,234,567
}
```

View File

@@ -1,16 +1,18 @@
# Function
Package function can control the flow of function execution and support part of functional programming.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/function/function.go](https://github.com/duke-git/lancet/blob/main/function/function.go)
- [https://github.com/duke-git/lancet/blob/main/function/watcher.go](https://github.com/duke-git/lancet/blob/main/function/watcher.go)
- [https://github.com/duke-git/lancet/blob/main/function/function.go](https://github.com/duke-git/lancet/blob/main/function/function.go)
- [https://github.com/duke-git/lancet/blob/main/function/watcher.go](https://github.com/duke-git/lancet/blob/main/function/watcher.go)
<div STYLE="page-break-after: always;"></div>
## Usage:
```go
import (
"github.com/duke-git/lancet/v2/function"
@@ -20,22 +22,22 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [After](#After)
- [Before](#Before)
- [CurryFn](#CurryFn)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Watcher](#Watcher)
- [After](#After)
- [Before](#Before)
- [CurryFn](#CurryFn)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Watcher](#Watcher)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="After">After</span>
<p>Creates a function that invokes given func once it's called n or more times.</p>
<b>Signature:</b>
@@ -43,6 +45,7 @@ import (
```go
func After(n int, fn any) func(args ...any) []reflect.Value
```
<b>Example:</b>
```go
@@ -54,33 +57,18 @@ import (
)
func main() {
arr := []string{"a", "b"}
f := function.After(len(arr), func(i int) int {
fmt.Println("last print")
return i
})
fn := function.After(2, func() {
fmt.Println("hello")
})
type cb func(args ...any) []reflect.Value
print := func(i int, s string, fn cb) {
fmt.Printf("arr[%d] is %s \n", i, s)
fn(i)
}
fn()
fn()
fmt.Println("arr is", arr)
for i := 0; i < len(arr); i++ {
print(i, arr[i], f)
}
//output:
// arr is [a b]
// arr[0] is a
// arr[1] is b
// last print
// Output:
// hello
}
```
### <span id="Before">Before</span>
<p>creates a function that invokes func once it's called less than n times.</p>
@@ -90,6 +78,7 @@ func main() {
```go
func Before(n int, fn any) func(args ...any) []reflect.Value
```
<b>Example:</b>
```go
@@ -102,29 +91,21 @@ import (
)
func main() {
arr := []string{"a", "b", "c", "d", "e"}
f := function.Before(3, func(i int) int {
return i
})
fn := function.Before(2, func() {
fmt.Println("hello")
})
var res []int64
type cb func(args ...any) []reflect.Value
appendStr := func(i int, s string, fn cb) {
v := fn(i)
res = append(res, v[0].Int())
}
fn()
fn()
fn()
fn()
for i := 0; i < len(arr); i++ {
appendStr(i, arr[i], f)
}
expected := []int64{0, 1, 2, 2, 2}
fmt.Println(res) // 0, 1, 2, 2, 2
// Output:
// hello
// hello
}
```
### <span id="CurryFn">CurryFn</span>
<p>Make curry function.</p>
@@ -135,6 +116,7 @@ func main() {
type CurryFn[T any] func(...T) T
func (cf CurryFn[T]) New(val T) func(...T) T
```
<b>Example:</b>
```go
@@ -147,22 +129,23 @@ import (
func main() {
add := func(a, b int) int {
return a + b
}
return a + b
}
var addCurry CurryFn[int] = func(values ...int) int {
return add(values[0], values[1])
}
add1 := addCurry.New(1)
var addCurry function.CurryFn[int] = func(values ...int) int {
return add(values[0], values[1])
}
add1 := addCurry.New(1)
result := add1(2)
result := add1(2)
fmt.Println(result) //3
fmt.Println(result)
// Output:
// 3
}
```
### <span id="Compose">Compose</span>
<p>Compose the function list from right to left, then return the composed function.</p>
@@ -172,6 +155,7 @@ func main() {
```go
func Compose[T any](fnList ...func(...T) T) func(...T) T
```
<b>Example:</b>
```go
@@ -183,22 +167,23 @@ import (
)
func main() {
toUpper := func(strs ...string) string {
return strings.ToUpper(strs[0])
}
toLower := func(strs ...string) string {
return strings.ToLower(strs[0])
}
transform := Compose(toUpper, toLower)
toUpper := func(strs ...string) string {
return strings.ToUpper(strs[0])
}
toLower := func(strs ...string) string {
return strings.ToLower(strs[0])
}
transform := function.Compose(toUpper, toLower)
result := transform("aBCde")
result := transform("aBCde")
fmt.Println(result) //ABCDE
fmt.Println(result)
// Output:
// ABCDE
}
```
### <span id="Debounced">Debounced</span>
<p>Creates a debounced function that delays invoking fn until after wait duration have elapsed since the last time the debounced function was invoked.</p>
@@ -208,6 +193,7 @@ func main() {
```go
func Debounced(fn func(), duration time.Duration) func()
```
<b>Example:</b>
```go
@@ -220,27 +206,34 @@ import (
func main() {
count := 0
add := func() {
count++
}
debouncedAdd := function.Debounced(add, 50*time.Microsecond)
function.debouncedAdd()
function.debouncedAdd()
function.debouncedAdd()
function.debouncedAdd()
add := func() {
count++
}
time.Sleep(100 * time.Millisecond)
fmt.Println(count) //1
debouncedAdd := function.Debounced(add, 50*time.Microsecond)
function.debouncedAdd()
time.Sleep(100 * time.Millisecond)
fmt.Println(count) //2
debouncedAdd()
debouncedAdd()
debouncedAdd()
debouncedAdd()
time.Sleep(100 * time.Millisecond)
fmt.Println(count)
debouncedAdd()
time.Sleep(100 * time.Millisecond)
fmt.Println(count)
// Output:
// 1
// 2
}
```
### <span id="Delay">Delay</span>
<p>Invoke function after delayed time.</p>
@@ -250,6 +243,7 @@ func main() {
```go
func Delay(delay time.Duration, fn any, args ...any)
```
<b>Example:</b>
```go
@@ -261,15 +255,17 @@ import (
)
func main() {
var print = func(s string) {
fmt.Println(count) //delay 2 seconds
}
function.Delay(2*time.Second, print, "delay 2 seconds")
var print = func(s string) {
fmt.Println(s)
}
function.Delay(2*time.Second, print, "hello")
// Output:
// hello
}
```
### <span id="Schedule">Schedule</span>
<p>Invoke function every duration time, until close the returned bool chan.</p>
@@ -279,6 +275,7 @@ func main() {
```go
func Schedule(d time.Duration, fn any, args ...any) chan bool
```
<b>Example:</b>
```go
@@ -290,20 +287,24 @@ import (
)
func main() {
var res []string
appendStr := func(s string) {
res = append(res, s)
}
count := 0
stop := function.Schedule(1*time.Second, appendStr, "*")
time.Sleep(5 * time.Second)
close(stop)
increase := func() {
count++
}
fmt.Println(res) //[* * * * *]
stop := function.Schedule(2*time.Second, increase)
time.Sleep(2 * time.Second)
close(stop)
fmt.Println(count)
// Output:
// 2
}
```
### <span id="Pipeline">Pipeline</span>
<p>Pipeline takes a list of functions and returns a function whose param will be passed into
@@ -314,6 +315,7 @@ the functions one by one.</p>
```go
func Pipeline[T any](funcs ...func(T) T) func(T) T
```
<b>Example:</b>
```go
@@ -326,22 +328,26 @@ import (
func main() {
addOne := func(x int) int {
return x + 1
}
double := func(x int) int {
return 2 * x
}
square := func(x int) int {
return x * x
}
return x + 1
}
double := func(x int) int {
return 2 * x
}
square := func(x int) int {
return x * x
}
fn := Pipeline(addOne, double, square)
fn := function.Pipeline(addOne, double, square)
fmt.Println(fn(2)) //36
result := fn(2)
fmt.Println(result)
// Output:
// 36
}
```
### <span id="Watcher">Watcher</span>
<p>Watcher is used for record code excution time. can start/stop/reset the watch timer. get the elapsed time of function execution.</p>
@@ -350,9 +356,9 @@ func main() {
```go
type Watcher struct {
startTime int64
stopTime int64
excuting bool
startTime int64
stopTime int64
excuting bool
}
func NewWatcher() *Watcher
func (w *Watcher) Start() //start the watcher
@@ -360,6 +366,7 @@ func (w *Watcher) Stop() //stop the watcher
func (w *Watcher) Reset() //reset the watcher
func (w *Watcher) GetElapsedTime() time.Duration //get the elapsed time of function execution
```
<b>Example:</b>
```go
@@ -371,31 +378,28 @@ import (
)
func main() {
w := function.NewWatcher()
w := function.NewWatcher()
w.Start()
w.Start()
longRunningTask()
longRunningTask()
fmt.Println(w.excuting) //true
fmt.Println(w.excuting) //true
w.Stop()
w.Stop()
eapsedTime := w.GetElapsedTime().Milliseconds()
fmt.Println(eapsedTime)
eapsedTime := w.GetElapsedTime().Milliseconds()
w.Reset()
fmt.Println(eapsedTime)
w.Reset()
}
func longRunningTask() {
var slice []int64
for i := 0; i < 10000000; i++ {
slice = append(slice, int64(i))
}
var slice []int64
for i := 0; i < 10000000; i++ {
slice = append(slice, int64(i))
}
}
```

View File

@@ -1,16 +1,18 @@
# Function
function函数包控制函数执行流程包含部分函数式编程。
function 函数包控制函数执行流程,包含部分函数式编程。
<div STYLE="page-break-after: always;"></div>
## 源码:
- [https://github.com/duke-git/lancet/blob/main/function/function.go](https://github.com/duke-git/lancet/blob/main/function/function.go)
- [https://github.com/duke-git/lancet/blob/main/function/watcher.go](https://github.com/duke-git/lancet/blob/main/function/watcher.go)
- [https://github.com/duke-git/lancet/blob/main/function/function.go](https://github.com/duke-git/lancet/blob/main/function/function.go)
- [https://github.com/duke-git/lancet/blob/main/function/watcher.go](https://github.com/duke-git/lancet/blob/main/function/watcher.go)
<div STYLE="page-break-after: always;"></div>
## 用法:
```go
import (
"github.com/duke-git/lancet/v2/function"
@@ -20,22 +22,22 @@ import (
<div STYLE="page-break-after: always;"></div>
## 目录
- [After](#After)
- [Before](#Before)
- [CurryFn](#CurryFn)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Watcher](#Watcher)
- [After](#After)
- [Before](#Before)
- [CurryFn](#CurryFn)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Watcher](#Watcher)
<div STYLE="page-break-after: always;"></div>
## 文档
### <span id="After">After</span>
<p>创建一个函数当他被调用n或更多次之后将马上触发fn</p>
<b>函数签名:</b>
@@ -43,6 +45,7 @@ import (
```go
func After(n int, fn any) func(args ...any) []reflect.Value
```
<b>例子:</b>
```go
@@ -54,33 +57,18 @@ import (
)
func main() {
arr := []string{"a", "b"}
f := function.After(len(arr), func(i int) int {
fmt.Println("last print")
return i
})
fn := function.After(2, func() {
fmt.Println("hello")
})
type cb func(args ...any) []reflect.Value
print := func(i int, s string, fn cb) {
fmt.Printf("arr[%d] is %s \n", i, s)
fn(i)
}
fn()
fn()
fmt.Println("arr is", arr)
for i := 0; i < len(arr); i++ {
print(i, arr[i], f)
}
//output:
// arr is [a b]
// arr[0] is a
// arr[1] is b
// last print
// Output:
// hello
}
```
### <span id="Before">Before</span>
<p>创建一个函数调用次数不超过n次之后再调用这个函数将返回一次最后调用fn的结果</p>
@@ -90,6 +78,7 @@ func main() {
```go
func Before(n int, fn any) func(args ...any) []reflect.Value
```
<b>例子:</b>
```go
@@ -102,28 +91,21 @@ import (
)
func main() {
arr := []string{"a", "b", "c", "d", "e"}
f := function.Before(3, func(i int) int {
return i
})
fn := function.Before(2, func() {
fmt.Println("hello")
})
var res []int64
type cb func(args ...any) []reflect.Value
appendStr := func(i int, s string, fn cb) {
v := fn(i)
res = append(res, v[0].Int())
}
fn()
fn()
fn()
fn()
for i := 0; i < len(arr); i++ {
appendStr(i, arr[i], f)
}
fmt.Println(res) // 0, 1, 2, 2, 2
// Output:
// hello
// hello
}
```
### <span id="CurryFn">CurryFn</span>
<p>创建柯里化函数</p>
@@ -134,6 +116,7 @@ func main() {
type CurryFn[T any] func(...T) T
func (cf CurryFn[T]) New(val T) func(...T) T
```
<b>例子:</b>
```go
@@ -145,23 +128,24 @@ import (
)
func main() {
add := func(a, b int) int {
return a + b
}
add := func(a, b int) int {
return a + b
}
var addCurry CurryFn[int] = func(values ...int) int {
return add(values[0], values[1])
}
add1 := addCurry.New(1)
var addCurry function.CurryFn[int] = func(values ...int) int {
return add(values[0], values[1])
}
add1 := addCurry.New(1)
result := add1(2)
result := add1(2)
fmt.Println(result) //3
fmt.Println(result)
// Output:
// 3
}
```
### <span id="Compose">Compose</span>
<p>从右至左组合函数列表fnList返回组合后的函数</p>
@@ -171,6 +155,7 @@ func main() {
```go
func Compose[T any](fnList ...func(...T) T) func(...T) T
```
<b>例子:</b>
```go
@@ -182,22 +167,23 @@ import (
)
func main() {
toUpper := func(strs ...string) string {
return strings.ToUpper(strs[0])
}
toLower := func(strs ...string) string {
return strings.ToLower(strs[0])
}
transform := Compose(toUpper, toLower)
toUpper := func(strs ...string) string {
return strings.ToUpper(strs[0])
}
toLower := func(strs ...string) string {
return strings.ToLower(strs[0])
}
transform := function.Compose(toUpper, toLower)
result := transform("aBCde")
result := transform("aBCde")
fmt.Println(result) //ABCDE
fmt.Println(result)
// Output:
// ABCDE
}
```
### <span id="Debounced">Debounced</span>
<p>创建一个debounced函数该函数延迟调用fn直到自上次调用debounced函数后等待持续时间过去。</p>
@@ -207,6 +193,7 @@ func main() {
```go
func Debounced(fn func(), duration time.Duration) func()
```
<b>例子:</b>
```go
@@ -218,28 +205,35 @@ import (
)
func main() {
count := 0
add := func() {
count++
}
count := 0
add := func() {
count++
}
debouncedAdd := function.Debounced(add, 50*time.Microsecond)
function.debouncedAdd()
function.debouncedAdd()
function.debouncedAdd()
function.debouncedAdd()
debouncedAdd := function.Debounced(add, 50*time.Microsecond)
time.Sleep(100 * time.Millisecond)
fmt.Println(count) //1
debouncedAdd()
debouncedAdd()
debouncedAdd()
debouncedAdd()
function.debouncedAdd()
time.Sleep(100 * time.Millisecond)
fmt.Println(count) //2
time.Sleep(100 * time.Millisecond)
fmt.Println(count)
debouncedAdd()
time.Sleep(100 * time.Millisecond)
fmt.Println(count)
// Output:
// 1
// 2
}
```
### <span id="Delay">Delay</span>
<p>延迟delay时间后调用函数</p>
@@ -249,6 +243,7 @@ func main() {
```go
func Delay(delay time.Duration, fn any, args ...any)
```
<b>例子:</b>
```go
@@ -260,15 +255,17 @@ import (
)
func main() {
var print = func(s string) {
fmt.Println(count) //test delay
}
function.Delay(2*time.Second, print, "test delay")
var print = func(s string) {
fmt.Println(s)
}
function.Delay(2*time.Second, print, "hello")
// Output:
// hello
}
```
### <span id="Schedule">Schedule</span>
<p>每次持续时间调用函数,直到关闭返回的 bool chan</p>
@@ -278,6 +275,7 @@ func main() {
```go
func Schedule(d time.Duration, fn any, args ...any) chan bool
```
<b>例子:</b>
```go
@@ -289,21 +287,24 @@ import (
)
func main() {
var res []string
appendStr := func(s string) {
res = append(res, s)
}
count := 0
stop := function.Schedule(1*time.Second, appendStr, "*")
time.Sleep(5 * time.Second)
close(stop)
increase := func() {
count++
}
fmt.Println(res) //[* * * * *]
stop := function.Schedule(2*time.Second, increase)
time.Sleep(2 * time.Second)
close(stop)
fmt.Println(count)
// Output:
// 2
}
```
### <span id="Pipeline">Pipeline</span>
<p>执行函数pipeline.</p>
@@ -313,6 +314,7 @@ func main() {
```go
func Pipeline[T any](funcs ...func(T) T) func(T) T
```
<b>例子:</b>
```go
@@ -325,23 +327,26 @@ import (
func main() {
addOne := func(x int) int {
return x + 1
}
double := func(x int) int {
return 2 * x
}
square := func(x int) int {
return x * x
}
return x + 1
}
double := func(x int) int {
return 2 * x
}
square := func(x int) int {
return x * x
}
f := Pipeline(addOne, double, square)
fn := function.Pipeline(addOne, double, square)
fmt.Println(fn(2)) //36
result := fn(2)
fmt.Println(result)
// Output:
// 36
}
```
### <span id="Watcher">Watcher</span>
<p>Watcher用于记录代码执行时间。可以启动/停止/重置手表定时器。获取函数执行的时间。</p>
@@ -350,9 +355,9 @@ func main() {
```go
type Watcher struct {
startTime int64
stopTime int64
excuting bool
startTime int64
stopTime int64
excuting bool
}
func NewWatcher() *Watcher
func (w *Watcher) Start() //start the watcher
@@ -360,6 +365,7 @@ func (w *Watcher) Stop() //stop the watcher
func (w *Watcher) Reset() //reset the watcher
func (w *Watcher) GetElapsedTime() time.Duration //get the elapsed time of function execution
```
<b>例子:</b>
```go
@@ -373,30 +379,27 @@ import (
func main() {
w := function.NewWatcher()
w.Start()
w.Start()
longRunningTask()
longRunningTask()
fmt.Println(w.excuting) //true
fmt.Println(w.excuting) //true
w.Stop()
w.Stop()
eapsedTime := w.GetElapsedTime().Milliseconds()
fmt.Println(eapsedTime)
eapsedTime := w.GetElapsedTime().Milliseconds()
w.Reset()
fmt.Println(eapsedTime)
w.Reset()
}
func longRunningTask() {
var slice []int64
for i := 0; i < 10000000; i++ {
slice = append(slice, int64(i))
}
var slice []int64
for i := 0; i < 10000000; i++ {
slice = append(slice, int64(i))
}
}
```

View File

@@ -1,16 +1,17 @@
# Maputil
Package maputil includes some functions to manipulate map.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
<div STYLE="page-break-after: always;"></div>
## Example:
```go
import (
"github.com/duke-git/lancet/v2/maputil"
@@ -20,22 +21,22 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [ForEach](#ForEach)
- [Filter](#Filter)
- [Intersect](#Intersect)
- [Keys](#Keys)
- [Merge](#Merge)
- [Minus](#Minus)
- [Values](#Values)
- [IsDisjoint](#IsDisjoint)
- [ForEach](#ForEach)
- [Filter](#Filter)
- [Intersect](#Intersect)
- [Keys](#Keys)
- [Merge](#Merge)
- [Minus](#Minus)
- [Values](#Values)
- [IsDisjoint](#IsDisjoint)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="ForEach">ForEach</span>
<p>Executes iteratee funcation for every key and value pair in map.</p>
<b>Signature:</b>
@@ -43,6 +44,7 @@ import (
```go
func ForEach[K comparable, V any](m map[K]V, iteratee func(key K, value V))
```
<b>Example:</b>
```go
@@ -54,26 +56,28 @@ import (
)
func main() {
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
}
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
}
var sum int
var sum int
maputil.ForEach(m, func(_ string, value int) {
sum += value
})
fmt.Println(sum) // 10
maputil.ForEach(m, func(_ string, value int) {
sum += value
})
fmt.Println(sum)
// Output:
// 10
}
```
### <span id="Filter">Filter</span>
<p>Iterates over map, return a new map contains all key and value pairs pass the predicate function.</p>
<b>Signature:</b>
@@ -81,6 +85,7 @@ func main() {
```go
func Filter[K comparable, V any](m map[K]V, predicate func(key K, value V) bool) map[K]V
```
<b>Example:</b>
```go
@@ -92,29 +97,32 @@ import (
)
func main() {
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
"e": 5,
}
isEven := func(_ string, value int) bool {
return value%2 == 0
}
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
"e": 5,
}
isEven := func(_ string, value int) bool {
return value%2 == 0
}
maputil.Filter(m, func(_ string, value int) {
sum += value
})
res := maputil.Filter(m, isEven)
fmt.Println(res) // map[string]int{"b": 2, "d": 4,}
maputil.Filter(m, func(_ string, value int) {
sum += value
})
result := maputil.Filter(m, isEven)
fmt.Println(result)
// Output:
// map[b:2 d:4]
}
```
### <span id="Intersect">Intersect</span>
<p>Iterates over maps, return a new map of key and value pairs in all given maps.</p>
<b>Signature:</b>
@@ -122,6 +130,7 @@ func main() {
```go
func Intersect[K comparable, V any](maps ...map[K]V) map[K]V
```
<b>Example:</b>
```go
@@ -133,37 +142,42 @@ import (
)
func main() {
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[string]int{
"a": 1,
"b": 2,
"c": 6,
"d": 7,
}
m2 := map[string]int{
"a": 1,
"b": 2,
"c": 6,
"d": 7,
}
m3 := map[string]int{
"a": 1,
"b": 9,
"e": 9,
}
m3 := map[string]int{
"a": 1,
"b": 9,
"e": 9,
}
fmt.Println(maputil.Intersect(m1)) // map[string]int{"a": 1, "b": 2, "c": 3}
result1 := maputil.Intersect(m1)
result2 := maputil.Intersect(m1, m2)
result3 := maputil.Intersect(m1, m2, m3)
fmt.Println(maputil.Intersect(m1, m2)) // map[string]int{"a": 1, "b": 2}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(maputil.Intersect(m1, m2, m3)) // map[string]int{"a": 1}
// Output:
// map[a:1 b:2 c:3]
// map[a:1 b:2]
// map[a:1]
}
```
### <span id="Keys">Keys</span>
<p>Returns a slice of the map's keys.</p>
<b>Signature:</b>
@@ -171,6 +185,7 @@ func main() {
```go
func Keys[K comparable, V any](m map[K]V) []K
```
<b>Example:</b>
```go
@@ -182,24 +197,26 @@ import (
)
func main() {
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
keys := maputil.Keys(m)
sort.Ints(keys)
fmt.Println(keys) // []int{1, 2, 3, 4, 5}
keys := maputil.Keys(m)
sort.Ints(keys)
fmt.Println(keys)
// Output:
// [1 2 3 4 5]
}
```
### <span id="Merge">Merge</span>
<p>Merge maps, next key will overwrite previous key.</p>
<b>Signature:</b>
@@ -207,6 +224,7 @@ func main() {
```go
func Merge[K comparable, V any](maps ...map[K]V) map[K]V
```
<b>Example:</b>
```go
@@ -218,22 +236,26 @@ import (
)
func main() {
m1 := map[int]string{
1: "a",
2: "b",
}
m2 := map[int]string{
1: "1",
3: "2",
}
fmt.Println(maputil.Merge(m1, m2)) // map[int]string{1:"1", 2:"b", 3:"2",}
m1 := map[int]string{
1: "a",
2: "b",
}
m2 := map[int]string{
1: "1",
3: "2",
}
result := maputil.Merge(m1, m2)
fmt.Println(result)
// Output:
// map[1:c 2:b 3:d]
}
```
### <span id="Minus">Minus</span>
<p>Creates an map of whose key in mapA but not in mapB.</p>
<b>Signature:</b>
@@ -241,6 +263,7 @@ func main() {
```go
func Minus[K comparable, V any](mapA, mapB map[K]V) map[K]V
```
<b>Example:</b>
```go
@@ -252,25 +275,29 @@ import (
)
func main() {
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[string]int{
"a": 11,
"b": 22,
"d": 33,
}
m2 := map[string]int{
"a": 11,
"b": 22,
"d": 33,
}
result := maputil.Minus(m1, m2)
fmt.Println(maputil.Minus(m1, m2)) //map[string]int{"c": 3}
fmt.Println(result)
// Output:
// map[c:3]
}
```
### <span id="Values">Values</span>
<p>Returns a slice of the map's values.</p>
<b>Signature:</b>
@@ -278,6 +305,7 @@ func main() {
```go
func Values[K comparable, V any](m map[K]V) []V
```
<b>Example:</b>
```go
@@ -289,22 +317,26 @@ import (
)
func main() {
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
values := maputil.Values(m)
sort.Strings(values)
values := maputil.Values(m)
sort.Strings(values)
fmt.Println(values) // []string{"a", "a", "b", "c", "d"}
fmt.Println(values)
// Output:
// [a a b c d]
}
```
### <span id="IsDisjoint">IsDisjoint</span>
<p>Checks two maps are disjoint if they have no keys in common</p>
<b>Signature:</b>
@@ -312,6 +344,7 @@ func main() {
```go
func IsDisjoint[K comparable, V any](mapA, mapB map[K]V) bool
```
<b>Example:</b>
```go
@@ -323,30 +356,28 @@ import (
)
func main() {
m1 := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m2 := map[string]int{
"d": 22,
}
m3 := map[int]string{
6: "a",
}
m3 := map[string]int{
"a": 22,
}
ok := maputil.IsDisjoint(m2, m1)
fmt.Println(ok) // false
result1 := maputil.IsDisjoint(m1, m2)
result2 := maputil.IsDisjoint(m1, m3)
ok = maputil.IsDisjoint(m2, m3)
fmt.Println(ok) // true
fmt.Println(result1)
fmt.Println(result2)
// Output:
// true
// false
}
```
```

View File

@@ -1,16 +1,17 @@
# Maputil
maputil包包括一些操作map的函数。
maputil 包包括一些操作 map 的函数。
<div STYLE="page-break-after: always;"></div>
## 源码:
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
<div STYLE="page-break-after: always;"></div>
## 用法:
```go
import (
"github.com/duke-git/lancet/v2/maputil"
@@ -20,22 +21,22 @@ import (
<div STYLE="page-break-after: always;"></div>
## 目录:
- [ForEach](#ForEach)
- [Filter](#Filter)
- [Intersect](#Intersect)
- [Keys](#Keys)
- [Merge](#Merge)
- [Minus](#Minus)
- [Values](#Values)
- [IsDisjoint](#IsDisjoint)
- [ForEach](#ForEach)
- [Filter](#Filter)
- [Intersect](#Intersect)
- [Keys](#Keys)
- [Merge](#Merge)
- [Minus](#Minus)
- [Values](#Values)
- [IsDisjoint](#IsDisjoint)
<div STYLE="page-break-after: always;"></div>
## API文档:
## API 文档:
### <span id="ForEach">ForEach</span>
<p>对map中的每对key和value执行iteratee函数</p>
<b>函数签名:</b>
@@ -43,6 +44,7 @@ import (
```go
func ForEach[K comparable, V any](m map[K]V, iteratee func(key K, value V))
```
<b>例子:</b>
```go
@@ -54,26 +56,28 @@ import (
)
func main() {
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
}
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
}
var sum int
var sum int
maputil.ForEach(m, func(_ string, value int) {
sum += value
})
fmt.Println(sum) // 10
maputil.ForEach(m, func(_ string, value int) {
sum += value
})
fmt.Println(sum)
// Output:
// 10
}
```
### <span id="Filter">Filter</span>
<p>迭代map中的每对key和value, 返回符合predicate函数的key, value</p>
<b>函数签名:</b>
@@ -81,6 +85,7 @@ func main() {
```go
func Filter[K comparable, V any](m map[K]V, predicate func(key K, value V) bool) map[K]V
```
<b>例子:</b>
```go
@@ -92,29 +97,32 @@ import (
)
func main() {
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
"e": 5,
}
isEven := func(_ string, value int) bool {
return value%2 == 0
}
m := map[string]int{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
"e": 5,
}
isEven := func(_ string, value int) bool {
return value%2 == 0
}
maputil.Filter(m, func(_ string, value int) {
sum += value
})
res := maputil.Filter(m, isEven)
fmt.Println(res) // map[string]int{"b": 2, "d": 4,}
maputil.Filter(m, func(_ string, value int) {
sum += value
})
result := Filter(m, isEven)
fmt.Println(result)
// Output:
// map[b:2 d:4]
}
```
### <span id="Intersect">Intersect</span>
<p>多个map的交集操作</p>
<b>函数签名:</b>
@@ -122,6 +130,7 @@ func main() {
```go
func Intersect[K comparable, V any](maps ...map[K]V) map[K]V
```
<b>例子:</b>
```go
@@ -133,37 +142,42 @@ import (
)
func main() {
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[string]int{
"a": 1,
"b": 2,
"c": 6,
"d": 7,
}
m2 := map[string]int{
"a": 1,
"b": 2,
"c": 6,
"d": 7,
}
m3 := map[string]int{
"a": 1,
"b": 9,
"e": 9,
}
m3 := map[string]int{
"a": 1,
"b": 9,
"e": 9,
}
fmt.Println(maputil.Intersect(m1)) // map[string]int{"a": 1, "b": 2, "c": 3}
result1 := maputil.Intersect(m1)
result2 := maputil.Intersect(m1, m2)
result3 := maputil.Intersect(m1, m2, m3)
fmt.Println(maputil.Intersect(m1, m2)) // map[string]int{"a": 1, "b": 2}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(maputil.Intersect(m1, m2, m3)) // map[string]int{"a": 1}
// Output:
// map[a:1 b:2 c:3]
// map[a:1 b:2]
// map[a:1]
}
```
### <span id="Keys">Keys</span>
<p>返回map中所有key的切片</p>
<b>函数签名:</b>
@@ -171,6 +185,7 @@ func main() {
```go
func Keys[K comparable, V any](m map[K]V) []K
```
<b>例子:</b>
```go
@@ -182,24 +197,26 @@ import (
)
func main() {
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
keys := maputil.Keys(m)
sort.Ints(keys)
fmt.Println(keys) // []int{1, 2, 3, 4, 5}
keys := maputil.Keys(m)
sort.Ints(keys)
fmt.Println(keys)
// Output:
// [1 2 3 4 5]
}
```
### <span id="Merge">Merge</span>
<p>合并多个maps, 相同的key会被后来的key覆盖</p>
<b>函数签名:</b>
@@ -207,6 +224,7 @@ func main() {
```go
func Merge[K comparable, V any](maps ...map[K]V) map[K]V
```
<b>例子:</b>
```go
@@ -218,21 +236,26 @@ import (
)
func main() {
m1 := map[int]string{
1: "a",
2: "b",
}
m2 := map[int]string{
1: "1",
3: "2",
}
fmt.Println(maputil.Merge(m1, m2)) // map[int]string{1:"1", 2:"b", 3:"2",}
m1 := map[int]string{
1: "a",
2: "b",
}
m2 := map[int]string{
1: "1",
3: "2",
}
result := maputil.Merge(m1, m2)
fmt.Println(result)
// Output:
// map[1:c 2:b 3:d]
}
```
### <span id="Minus">Minus</span>
<p>返回一个map其中的key存在于mapA不存在于mapB.</p>
<b>函数签名:</b>
@@ -240,6 +263,7 @@ func main() {
```go
func Minus[K comparable, V any](mapA, mapB map[K]V) map[K]V
```
<b>例子:</b>
```go
@@ -251,25 +275,29 @@ import (
)
func main() {
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[string]int{
"a": 11,
"b": 22,
"d": 33,
}
m2 := map[string]int{
"a": 11,
"b": 22,
"d": 33,
}
fmt.Println(maputil.Minus(m1, m2)) //map[string]int{"c": 3}
result := maputil.Minus(m1, m2)
fmt.Println(result)
// Output:
// map[c:3]
}
```
### <span id="Values">Values</span>
<p>返回map中所有value的切片</p>
<b>函数签名:</b>
@@ -277,6 +305,7 @@ func main() {
```go
func Values[K comparable, V any](m map[K]V) []V
```
<b>例子:</b>
```go
@@ -288,23 +317,24 @@ import (
)
func main() {
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
values := maputil.Values(m)
sort.Strings(values)
values := maputil.Values(m)
sort.Strings(values)
fmt.Println(values) // []string{"a", "a", "b", "c", "d"}
// Output:
// [a a b c d]
}
```
### <span id="IsDisjoint">IsDisjoint</span>
<p>验证两个map是否具有不同的key</p>
<b>函数签名:</b>
@@ -312,6 +342,7 @@ func main() {
```go
func IsDisjoint[K comparable, V any](mapA, mapB map[K]V) bool
```
<b>例子:</b>
```go
@@ -323,30 +354,28 @@ import (
)
func main() {
m1 := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m1 := map[string]int{
"a": 1,
"b": 2,
"c": 3,
}
m2 := map[int]string{
1: "a",
2: "a",
3: "b",
4: "c",
5: "d",
}
m2 := map[string]int{
"d": 22,
}
m3 := map[int]string{
6: "a",
}
m3 := map[string]int{
"a": 22,
}
ok := maputil.IsDisjoint(m2, m1)
fmt.Println(ok) // false
result1 := maputil.IsDisjoint(m1, m2)
result2 := maputil.IsDisjoint(m1, m3)
ok = maputil.IsDisjoint(m2, m3)
fmt.Println(ok) // true
fmt.Println(result1)
fmt.Println(result2)
// Output:
// true
// false
}
```
```

View File

@@ -1,16 +1,17 @@
# Mathutil
Package mathutil implements some functions for math calculation.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
- [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
<div STYLE="page-break-after: always;"></div>
## Example:
```go
import (
"github.com/duke-git/lancet/v2/mathutil"
@@ -20,26 +21,26 @@ import (
<div STYLE="page-break-after: always;"></div>
## Index
- [Average](#Average)
- [Exponent](#Exponent)
- [Fibonacci](#Fibonacci)
- [Factorial](#Factorial)
- [Max](#Max)
- [MaxBy](#MaxBy)
- [Min](#Min)
- [MinBy](#MaxBy)
- [Percent](#Percent)
- [RoundToFloat](#RoundToFloat)
- [RoundToString](#RoundToString)
- [TruncRound](#TruncRound)
- [Average](#Average)
- [Exponent](#Exponent)
- [Fibonacci](#Fibonacci)
- [Factorial](#Factorial)
- [Max](#Max)
- [MaxBy](#MaxBy)
- [Min](#Min)
- [MinBy](#MaxBy)
- [Percent](#Percent)
- [RoundToFloat](#RoundToFloat)
- [RoundToString](#RoundToString)
- [TruncRound](#TruncRound)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="Average">Average</span>
<p>Return average value of numbers. Maybe call RoundToFloat to round result.</p>
<b>Signature:</b>
@@ -47,6 +48,7 @@ import (
```go
func Average[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>Example:</b>
```go
@@ -58,16 +60,22 @@ import (
)
func main() {
fmt.Println(mathutil.Average(0, 0)) //0
fmt.Println(mathutil.Average(1, 1)) //1
avg := mathutil.Average(1.2, 1.4) //1.2999999998
roundAvg := mmathutil.RoundToFloat(avg, 1) // 1.3
result1 := mathutil.Average(1, 2)
avg := mathutil.Average(1.2, 1.4)
result2 := mathutil.RoundToFloat(avg, 1)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 1
// 1.3
}
```
### <span id="Exponent">Exponent</span>
<p>Calculate x to the nth power.</p>
<b>Signature:</b>
@@ -75,6 +83,7 @@ func main() {
```go
func Exponent(x, n int64) int64
```
<b>Example:</b>
```go
@@ -86,15 +95,23 @@ import (
)
func main() {
fmt.Println(mathutil.Exponent(10, 0)) //1
fmt.Println(mathutil.Exponent(10, 1)) //10
fmt.Println(mathutil.Exponent(10, 2)) //100
result1 := mathutil.Exponent(10, 0)
result2 := mathutil.Exponent(10, 1)
result3 := mathutil.Exponent(10, 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 10
// 100
}
```
### <span id="Fibonacci">Fibonacci</span>
<p>Calculate the nth number of fibonacci sequence.</p>
<b>Signature:</b>
@@ -102,6 +119,7 @@ func main() {
```go
func Fibonacci(first, second, n int) int
```
<b>Example:</b>
```go
@@ -113,17 +131,23 @@ import (
)
func main() {
fmt.Println(mathutil.Fibonacci(1, 1, 1)) //1
fmt.Println(mathutil.Fibonacci(1, 1, 2)) //1
fmt.Println(mathutil.Fibonacci(1, 1, 3)) //2
fmt.Println(mathutil.Fibonacci(1, 1, 4)) //3
fmt.Println(mathutil.Fibonacci(1, 1, 5)) //5
result1 := mathutil.Fibonacci(1, 1, 1)
result2 := mathutil.Fibonacci(1, 1, 2)
result3 := mathutil.Fibonacci(1, 1, 5)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 1
// 5
}
```
### <span id="Factorial">Factorial</span>
<p>Calculate the factorial of x.</p>
<b>Signature:</b>
@@ -131,6 +155,7 @@ func main() {
```go
func Factorial(x uint) uint
```
<b>Example:</b>
```go
@@ -142,16 +167,23 @@ import (
)
func main() {
fmt.Println(mathutil.Factorial(0)) //1
fmt.Println(mathutil.Factorial(1)) //1
fmt.Println(mathutil.Factorial(2)) //2
fmt.Println(mathutil.Factorial(3)) //6
result1 := mathutil.Factorial(1)
result2 := mathutil.Factorial(2)
result3 := mathutil.Factorial(3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 2
// 6
}
```
### <span id="Max">Max</span>
<p>Return max value of numbers.</p>
<b>Signature:</b>
@@ -159,6 +191,7 @@ func main() {
```go
func Max[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>Example:</b>
```go
@@ -170,23 +203,28 @@ import (
)
func main() {
fmt.Println(mathutil.Max(0, 0)) //0
fmt.Println(mathutil.Max(1, 2, 3)) //3
fmt.Println(mathutil.Max(1.2, 1.4, 1.1, 1.4)) //1.4
result1 := mathutil.Max(1, 2, 3)
result2 := mathutil.Max(1.2, 1.4, 1.1, 1.4)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 3
// 1.4
}
```
### <span id="MaxBy">MaxBy</span>
<p>Return the maximum value of a slice using the given comparator function.</p>
<b>Signature:</b>
```go
func MaxBy[T any](slice []T, comparator func(T, T) bool) T
func MaxBy[T any](slice []T, comparator func(T, T) bool) T
```
<b>Example:</b>
```go
@@ -198,26 +236,31 @@ import (
)
func main() {
res1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res1) //abc
result1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
res2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res2) //abd
result2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
res3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res3) //“”
result3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// abc
// abd
//
}
```
### <span id="Min">Min</span>
<p>Return the minimum value of numbers.</p>
<b>Signature:</b>
@@ -225,6 +268,7 @@ func main() {
```go
func Min[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>Example:</b>
```go
@@ -236,22 +280,28 @@ import (
)
func main() {
fmt.Println(mathutil.Min(0, 0)) //0
fmt.Println(mathutil.Min(1, 2, 3)) //1
fmt.Println(mathutil.Min(1.2, 1.4, 1.1, 1.4)) //1.1
result1 := mathutil.Min(1, 2, 3)
result2 := mathutil.Min(1.2, 1.4, 1.1, 1.4)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 1
// 1.1
}
```
### <span id="MinBy">MinBy</span>
<p>Return the minimum value of a slice using the given comparator function.</p>
<b>Signature:</b>
```go
func MinBy[T any](slice []T, comparator func(T, T) bool) T
func MinBy[T any](slice []T, comparator func(T, T) bool) T
```
<b>Example:</b>
```go
@@ -263,27 +313,31 @@ import (
)
func main() {
res1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res1) //a
result1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
res2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res2) //ab
result2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
res3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res3) //“”
result3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// a
// ab
//
}
```
### <span id="Percent">Percent</span>
<p>calculate the percentage of val to total, retain n decimal places.</p>
<b>Signature:</b>
@@ -291,6 +345,7 @@ func main() {
```go
func Percent(val, total float64, n int) float64
```
<b>Example:</b>
```go
@@ -302,14 +357,20 @@ import (
)
func main() {
fmt.Println(mathutil.Percent(1, 2, 2)) //0.5
fmt.Println(mathutil.Percent(0.1, 0.3, 2)) //0.33
result1 := mathutil.Percent(1, 2, 2)
result2 := mathutil.Percent(0.1, 0.3, 2)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0.5
// 0.33
}
```
### <span id="RoundToFloat">RoundToFloat</span>
<p>Round float up to n decimal places.</p>
<b>Signature:</b>
@@ -317,6 +378,7 @@ func main() {
```go
func RoundToFloat(x float64, n int) float64
```
<b>Example:</b>
```go
@@ -328,18 +390,23 @@ import (
)
func main() {
fmt.Println(mathutil.RoundToFloat(0, 0)) //0
fmt.Println(mathutil.RoundToFloat(0, 1)) //0
fmt.Println(mathutil.RoundToFloat(0.124, 2)) //0.12
fmt.Println(mathutil.RoundToFloat(0.125, 2)) //0.13
fmt.Println(mathutil.RoundToFloat(0.125, 3)) //0.125
result1 := mathutil.RoundToFloat(0.124, 2)
result2 := mathutil.RoundToFloat(0.125, 2)
result3 := mathutil.RoundToFloat(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.13
// 0.125
}
```
### <span id="RoundToString">RoundToString</span>
<p>Round float up to n decimal places. will return string.</p>
<b>Signature:</b>
@@ -347,6 +414,7 @@ func main() {
```go
func RoundToString(x float64, n int) string
```
<b>Example:</b>
```go
@@ -358,17 +426,23 @@ import (
)
func main() {
fmt.Println(mathutil.RoundToString(0, 0)) //"0"
fmt.Println(mathutil.RoundToString(0, 1)) //"0.0:
fmt.Println(mathutil.RoundToString(0.124, 2)) //"0.12"
fmt.Println(mathutil.RoundToString(0.125, 2)) //"0.13"
fmt.Println(mathutil.RoundToString(0.125, 3)) //"0.125"
result1 := mathutil.RoundToString(0.124, 2)
result2 := mathutil.RoundToString(0.125, 2)
result3 := mathutil.RoundToString(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.13
// 0.125
}
```
### <span id="TruncRound">TruncRound</span>
<p>Round float off n decimal places.</p>
<b>Signature:</b>
@@ -376,6 +450,7 @@ func main() {
```go
func TruncRound(x float64, n int) float64
```
<b>Example:</b>
```go
@@ -387,13 +462,17 @@ import (
)
func main() {
fmt.Println(mathutil.TruncRound(0, 0)) //0
fmt.Println(mathutil.TruncRound(0, 1)) //0
fmt.Println(mathutil.TruncRound(0.124, 2)) //0.12
fmt.Println(mathutil.TruncRound(0.125, 2)) //0.12
fmt.Println(mathutil.TruncRound(0.125, 3)) //0.125
result1 := mathutil.TruncRound(0.124, 2)
result2 := mathutil.TruncRound(0.125, 2)
result3 := mathutil.TruncRound(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.12
// 0.125
}
```

View File

@@ -1,16 +1,17 @@
# Mathutil
mathutil包实现了一些数学计算的函数.
mathutil 包实现了一些数学计算的函数.
<div STYLE="page-break-after: always;"></div>
## 源码:
- [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
- [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
<div STYLE="page-break-after: always;"></div>
## 用法:
```go
import (
"github.com/duke-git/lancet/v2/mathutil"
@@ -20,25 +21,26 @@ import (
<div STYLE="page-break-after: always;"></div>
## 目录
- [Average](#Average)
- [Exponent](#Exponent)
- [Fibonacci](#Fibonacci)
- [Factorial](#Factorial)
- [Max](#Max)
- [MaxBy](#MaxBy)
- [Min](#Min)
- [MinBy](#MaxBy)
- [Percent](#Percent)
- [RoundToFloat](#RoundToFloat)
- [RoundToString](#RoundToString)
- [TruncRound](#TruncRound)
- [Average](#Average)
- [Exponent](#Exponent)
- [Fibonacci](#Fibonacci)
- [Factorial](#Factorial)
- [Max](#Max)
- [MaxBy](#MaxBy)
- [Min](#Min)
- [MinBy](#MaxBy)
- [Percent](#Percent)
- [RoundToFloat](#RoundToFloat)
- [RoundToString](#RoundToString)
- [TruncRound](#TruncRound)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="Average">Average</span>
<p>计算平均数. 可能需要对结果调用RoundToFloat方法四舍五入</p>
<b>函数签名:</b>
@@ -46,6 +48,7 @@ import (
```go
func Average[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>例子:</b>
```go
@@ -57,15 +60,22 @@ import (
)
func main() {
fmt.Println(mathutil.Average(0, 0)) //0
fmt.Println(mathutil.Average(1, 1)) //1
avg := mathutil.Average(1.2, 1.4) //1.2999999998
roundAvg := mmathutil.RoundToFloat(avg, 1) // 1.3
result1 := mathutil.Average(1, 2)
avg := mathutil.Average(1.2, 1.4)
result2 := mathutil.RoundToFloat(avg, 1)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 1
// 1.3
}
```
### <span id="Exponent">Exponent</span>
<p>指数计算x的n次方</p>
<b>函数签名:</b>
@@ -73,6 +83,7 @@ func main() {
```go
func Exponent(x, n int64) int64
```
<b>例子:</b>
```go
@@ -84,15 +95,23 @@ import (
)
func main() {
fmt.Println(mathutil.Exponent(10, 0)) //1
fmt.Println(mathutil.Exponent(10, 1)) //10
fmt.Println(mathutil.Exponent(10, 2)) //100
result1 := mathutil.Exponent(10, 0)
result2 := mathutil.Exponent(10, 1)
result3 := mathutil.Exponent(10, 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 10
// 100
}
```
### <span id="Fibonacci">Fibonacci</span>
<p>计算斐波那契数列的第n个数</p>
<b>函数签名:</b>
@@ -100,6 +119,7 @@ func main() {
```go
func Fibonacci(first, second, n int) int
```
<b>例子:</b>
```go
@@ -111,17 +131,23 @@ import (
)
func main() {
fmt.Println(mathutil.Fibonacci(1, 1, 1)) //1
fmt.Println(mathutil.Fibonacci(1, 1, 2)) //1
fmt.Println(mathutil.Fibonacci(1, 1, 3)) //2
fmt.Println(mathutil.Fibonacci(1, 1, 4)) //3
fmt.Println(mathutil.Fibonacci(1, 1, 5)) //5
result1 := mathutil.Fibonacci(1, 1, 1)
result2 := mathutil.Fibonacci(1, 1, 2)
result3 := mathutil.Fibonacci(1, 1, 5)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 1
// 5
}
```
### <span id="Factorial">Factorial</span>
<p>计算阶乘</p>
<b>函数签名:</b>
@@ -129,6 +155,7 @@ func main() {
```go
func Factorial(x uint) uint
```
<b>例子:</b>
```go
@@ -140,15 +167,23 @@ import (
)
func main() {
fmt.Println(mathutil.Factorial(0)) //1
fmt.Println(mathutil.Factorial(1)) //1
fmt.Println(mathutil.Factorial(2)) //2
fmt.Println(mathutil.Factorial(3)) //6
result1 := mathutil.Factorial(1)
result2 := mathutil.Factorial(2)
result3 := mathutil.Factorial(3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 2
// 6
}
```
### <span id="Max">Max</span>
<p>返回参数中的最大数</p>
<b>函数签名:</b>
@@ -156,6 +191,7 @@ func main() {
```go
func Max[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>例子:</b>
```go
@@ -167,22 +203,28 @@ import (
)
func main() {
fmt.Println(mathutil.Max(0, 0)) //0
fmt.Println(mathutil.Max(1, 2, 3)) //3
fmt.Println(mathutil.Max(1.2, 1.4, 1.1, 1.4)) //1.4
result1 := mathutil.Max(1, 2, 3)
result2 := mathutil.Max(1.2, 1.4, 1.1, 1.4)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 3
// 1.4
}
```
### <span id="MaxBy">MaxBy</span>
<p>使用给定的比较器函数返回切片的最大值</p>
<b>函数签名:</b>
```go
func MaxBy[T any](slice []T, comparator func(T, T) bool) T
func MaxBy[T any](slice []T, comparator func(T, T) bool) T
```
<b>例子:</b>
```go
@@ -194,27 +236,31 @@ import (
)
func main() {
res1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res1) //abc
result1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
res2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res2) //abd
result2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
res3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(res3) //“”
result3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
return len(v1) > len(v2)
})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// abc
// abd
//
}
```
### <span id="Min">Min</span>
<p>返回参数中的最小数</p>
<b>函数签名:</b>
@@ -222,6 +268,7 @@ func main() {
```go
func Min[T constraints.Integer | constraints.Float](numbers ...T) T
```
<b>例子:</b>
```go
@@ -233,22 +280,28 @@ import (
)
func main() {
fmt.Println(mathutil.Min(0, 0)) //0
fmt.Println(mathutil.Min(1, 2, 3)) //1
fmt.Println(mathutil.Min(1.2, 1.4, 1.1, 1.4)) //1.1
result1 := mathutil.Min(1, 2, 3)
result2 := mathutil.Min(1.2, 1.4, 1.1, 1.4)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 1
// 1.1
}
```
### <span id="MinBy">MinBy</span>
<p>使用给定的比较器函数返回切片的最小值</p>
<b>函数签名:</b>
```go
func MinBy[T any](slice []T, comparator func(T, T) bool) T
func MinBy[T any](slice []T, comparator func(T, T) bool) T
```
<b>例子:</b>
```go
@@ -260,27 +313,31 @@ import (
)
func main() {
res1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res1) //a
result1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
res2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res2) //ab
result2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
res3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(res3) //“”
result3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
return len(v1) < len(v2)
})
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// a
// ab
//
}
```
### <span id="Percent">Percent</span>
<p>计算百分比保留n位小数</p>
<b>函数签名:</b>
@@ -288,6 +345,7 @@ func main() {
```go
func Percent(val, total float64, n int) float64
```
<b>例子:</b>
```go
@@ -299,14 +357,20 @@ import (
)
func main() {
fmt.Println(mathutil.Percent(1, 2, 2)) //0.5
fmt.Println(mathutil.Percent(0.1, 0.3, 2)) //0.33
result1 := mathutil.Percent(1, 2, 2)
result2 := mathutil.Percent(0.1, 0.3, 2)
fmt.Println(result1)
fmt.Println(result2)
// Output:
// 0.5
// 0.33
}
```
### <span id="RoundToFloat">RoundToFloat</span>
<p>四舍五入保留n位小数</p>
<b>函数签名:</b>
@@ -314,6 +378,7 @@ func main() {
```go
func RoundToFloat(x float64, n int) float64
```
<b>例子:</b>
```go
@@ -325,18 +390,23 @@ import (
)
func main() {
fmt.Println(mathutil.RoundToFloat(0, 0)) //0
fmt.Println(mathutil.RoundToFloat(0, 1)) //0
fmt.Println(mathutil.RoundToFloat(0.124, 2)) //0.12
fmt.Println(mathutil.RoundToFloat(0.125, 2)) //0.13
fmt.Println(mathutil.RoundToFloat(0.125, 3)) //0.125
result1 := mathutil.RoundToFloat(0.124, 2)
result2 := mathutil.RoundToFloat(0.125, 2)
result3 := mathutil.RoundToFloat(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.13
// 0.125
}
```
### <span id="RoundToString">RoundToString</span>
<p>四舍五入保留n位小数返回字符串</p>
<b>函数签名:</b>
@@ -344,6 +414,7 @@ func main() {
```go
func RoundToString(x float64, n int) string
```
<b>例子:</b>
```go
@@ -355,17 +426,23 @@ import (
)
func main() {
fmt.Println(mathutil.RoundToString(0, 0)) //"0"
fmt.Println(mathutil.RoundToString(0, 1)) //"0.0:
fmt.Println(mathutil.RoundToString(0.124, 2)) //"0.12"
fmt.Println(mathutil.RoundToString(0.125, 2)) //"0.13"
fmt.Println(mathutil.RoundToString(0.125, 3)) //"0.125"
result1 := mathutil.RoundToString(0.124, 2)
result2 := mathutil.RoundToString(0.125, 2)
result3 := mathutil.RoundToString(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.13
// 0.125
}
```
### <span id="TruncRound">TruncRound</span>
<p>截短n位小数不进行四舍五入</p>
<b>函数签名:</b>
@@ -373,6 +450,7 @@ func main() {
```go
func TruncRound(x float64, n int) float64
```
<b>例子:</b>
```go
@@ -384,13 +462,17 @@ import (
)
func main() {
fmt.Println(mathutil.TruncRound(0, 0)) //0
fmt.Println(mathutil.TruncRound(0, 1)) //0
fmt.Println(mathutil.TruncRound(0.124, 2)) //0.12
fmt.Println(mathutil.TruncRound(0.125, 2)) //0.12
fmt.Println(mathutil.TruncRound(0.125, 3)) //0.125
result1 := mathutil.TruncRound(0.124, 2)
result2 := mathutil.TruncRound(0.125, 2)
result3 := mathutil.TruncRound(0.125, 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 0.12
// 0.12
// 0.125
}
```

View File

@@ -64,19 +64,27 @@ import (
)
func main() {
s1 := strutil.After("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.After("foo", "")
result2 := strutil.After("foo", "foo")
result3 := strutil.After("foo/bar", "foo")
result4 := strutil.After("foo/bar", "/")
result5 := strutil.After("foo/bar/baz", "/")
s2 := strutil.After("github.com/test/lancet", "/")
fmt.Println(s2) //test/lancet
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.After("github.com/test/lancet", "test")
fmt.Println(s3) // /lancet
// Output:
// foo
//
// /bar
// bar
// bar/baz
}
```
### <span id="AfterLast">AfterLast</span>
<p>Returns the substring after the last occurrence of a specified string in the source string.</p>
@@ -94,20 +102,27 @@ import (
)
func main() {
s1 := strutil.AfterLast("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.AfterLast("foo", "")
result2 := strutil.AfterLast("foo", "foo")
result3 := strutil.AfterLast("foo/bar", "/")
result4 := strutil.AfterLast("foo/bar/baz", "/")
result5 := strutil.AfterLast("foo/bar/foo/baz", "foo")
s2 := strutil.AfterLast("github.com/test/lancet", "/")
fmt.Println(s2) //lancet
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.AfterLast("github.com/test/test/lancet", "test")
fmt.Println(s3) // /test/lancet
// Output:
// foo
//
// bar
// baz
// /baz
}
```
### <span id="Before">Before</span>
<p>Returns the substring of the source string up to the first occurrence of the specified string.</p>
@@ -125,20 +140,24 @@ import (
)
func main() {
s1 := strutil.Before("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.Before("foo", "")
result2 := strutil.Before("foo", "foo")
result3 := strutil.Before("foo/bar", "/")
result4 := strutil.Before("foo/bar/baz", "/")
s2 := strutil.Before("github.com/test/lancet", "/")
fmt.Println(s2) //github.com
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
s3 := strutil.Before("github.com/test/lancet", "test")
fmt.Println(s3) // github.com/
// Output:
// foo
//
// foo
// foo
}
```
### <span id="BeforeLast">BeforeLast</span>
<p>Returns the substring of the source string up to the last occurrence of the specified string.</p>
@@ -156,18 +175,24 @@ import (
)
func main() {
s1 := strutil.BeforeLast("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.BeforeLast("foo", "")
result2 := strutil.BeforeLast("foo", "foo")
result3 := strutil.BeforeLast("foo/bar", "/")
result4 := strutil.BeforeLast("foo/bar/baz", "/")
s2 := strutil.BeforeLast("github.com/test/lancet", "/")
fmt.Println(s2) //github.com/test
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
s3 := strutil.BeforeLast("github.com/test/test/lancet", "test")
fmt.Println(s3) //github.com/test/
// Output:
// foo
//
// foo
// foo/bar
}
```
### <span id="CamelCase">CamelCase</span>
<p>Coverts string to camelCase string, non letters and numbers will be ignored.</p>
@@ -185,25 +210,22 @@ import (
)
func main() {
s1 := strutil.CamelCase("foo_bar")
fmt.Println(s1) //fooBar
strings := []string{"", "foobar", "&FOO:BAR$BAZ", "$foo%", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.CamelCase("Foo-Bar")
fmt.Println(s2) //fooBar
s3 := strutil.CamelCase("Foo&bar")
fmt.Println(s3) //fooBar
s4 := strutil.CamelCase("foo bar")
fmt.Println(s4) //fooBar
s4 := strutil.CamelCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s4) //foo11Bar
for _, v := range strings {
s := strutil.CamelCase(v)
fmt.Println(s)
}
// Output:
//
// foobar
// fooBarBaz
// foo
// foo11Bar
}
```
### <span id="KebabCase">KebabCase</span>
<p>KebabCase covert string to kebab-case, non letters and numbers will be ignored.</p>
@@ -221,29 +243,29 @@ import (
)
func main() {
s1 := strutil.KebabCase("Foo Bar-")
fmt.Println(s1) //foo-bar
strings := []string{"", "foo-bar", "Foo Bar-", "FOOBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.KebabCase("foo_Bar")
fmt.Println(s2) //foo-bar
for _, v := range strings {
s := strutil.KebabCase(v)
fmt.Println(s)
}
s3 := strutil.KebabCase("fooBar")
fmt.Println(s3) //foo-bar
s4 := strutil.KebabCase("__FOO_BAR__")
fmt.Println(s4) //foo-bar
// Output:
//
// foo-bar
// foo-bar
// foobar
// foo-1-1-bar
}
```
### <span id="UpperKebabCase">UpperKebabCase</span>
<p>UpperKebabCase covert string to upper KEBAB-CASE, non letters and numbers will be ignored.</p>
<b>Signature:</b>
```go
func KebabCase(s string) string
func UpperKebabCase(s string) string
```
<b>Example:</b>
@@ -254,23 +276,22 @@ import (
)
func main() {
s1 := strutil.UpperKebabCase("Foo Bar-")
fmt.Println(s1) //FOO-BAR
strings := []string{"", "foo-bar", "Foo Bar-", "FooBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.UpperKebabCase("foo_Bar")
fmt.Println(s2) //FOO-BAR
for _, v := range strings {
s := strutil.UpperKebabCase(v)
fmt.Println(s)
}
s3 := strutil.UpperKebabCase("fooBar")
fmt.Println(s3) //FOO-BAR
s4 := strutil.UpperKebabCase("__FOO_BAR__")
fmt.Println(s4) //FOO-BAR
// Output:
//
// FOO-BAR
// FOO-BAR
// FOO-BAR
// FOO-1-1-BAR
}
```
### <span id="Capitalize">Capitalize</span>
<p>Convert the first character of a string to upper case.</p>
@@ -288,19 +309,22 @@ import (
)
func main() {
s1 := strutil.Capitalize("foo")
fmt.Println(s1) //foo
strings := []string{"", "Foo", "_foo", "fooBar", "foo-bar"}
s2 := strutil.Capitalize("Foo")
fmt.Println(s2) //foo
for _, v := range strings {
s := strutil.Capitalize(v)
fmt.Println(s)
}
s3 := strutil.Capitalize("FOo"
fmt.Println(s3) //fOo
// Output:
//
// Foo
// _foo
// Foobar
// Foo-bar
}
```
### <span id="IsString">IsString</span>
<p>Check if the value's data type is string.</p>
@@ -318,51 +342,27 @@ import (
)
func main() {
fmt.Println(strutil.IsString("lancet")) //true
fmt.Println(strutil.IsString("")) //true
result1 := strutil.IsString("")
result2 := strutil.IsString("a")
result3 := strutil.IsString(1)
result4 := strutil.IsString(true)
result5 := strutil.IsString([]string{"a"})
fmt.Println(strutil.IsString(1)) //false
fmt.Println(strutil.IsString("")) //false
fmt.Println(strutil.IsString([]string{})) //false
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// true
// true
// false
// false
// false
}
```
### <span id="KebabCase">KebabCase</span>
<p>Covert string to kebab-case.</p>
<b>Signature:</b>
```go
func KebabCase(s string) string
```
<b>Example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/strutil"
)
func main() {
s1 := strutil.KebabCase("Foo Bar-")
fmt.Println(s1) //foo-bar
s2 := strutil.KebabCase("foo_Bar")
fmt.Println(s2) //foo-bar
s3 := strutil.KebabCase("fooBar")
fmt.Println(s3) //foo-bar
s4 := strutil.KebabCase("__FOO_BAR__")
fmt.Println(s4) //f-o-o-b-a-r
}
```
### <span id="LowerFirst">LowerFirst</span>
<p>Convert the first character of string to lower case.</p>
@@ -380,23 +380,21 @@ import (
)
func main() {
s1 := strutil.LowerFirst("foo")
fmt.Println(s1) //foo
strings := []string{"", "bar", "BAr", "Bar大"}
s2 := strutil.LowerFirst("BAR")
fmt.Println(s2) //bAR
for _, v := range strings {
s := strutil.LowerFirst(v)
fmt.Println(s)
}
s3 := strutil.LowerFirst("FOo")
fmt.Println(s3) //fOo
s4 := strutil.LowerFirst("fOo大")
fmt.Println(s4) //fOo
// Output:
//
// bar
// bAr
// bar
}
```
### <span id="UpperFirst">UpperFirst</span>
<p>Convert the first character of string to upper case.</p>
@@ -414,23 +412,21 @@ import (
)
func main() {
s1 := strutil.UpperFirst("foo")
fmt.Println(s1) //Foo
strings := []string{"", "bar", "BAr", "bar大"}
s2 := strutil.UpperFirst("bAR")
fmt.Println(s2) //BAR
for _, v := range strings {
s := strutil.UpperFirst(v)
fmt.Println(s)
}
s3 := strutil.UpperFirst("FOo")
fmt.Println(s3) //FOo
s4 := strutil.UpperFirst("fOo大")
fmt.Println(s4) //FOo
// Output:
//
// Bar
// BAr
// Bar
}
```
### <span id="PadEnd">PadEnd</span>
<p>Pads string on the right side if it's shorter than size.</p>
@@ -448,23 +444,33 @@ import (
)
func main() {
s1 := strutil.PadEnd("a", 1, "b")
fmt.Println(s1) //a
result1 := strutil.PadEnd("foo", 1, "bar")
result2 := strutil.PadEnd("foo", 2, "bar")
result3 := strutil.PadEnd("foo", 3, "bar")
result4 := strutil.PadEnd("foo", 4, "bar")
result5 := strutil.PadEnd("foo", 5, "bar")
result6 := strutil.PadEnd("foo", 6, "bar")
result7 := strutil.PadEnd("foo", 7, "bar")
s2 := strutil.PadEnd("a", 2, "b")
fmt.Println(s2) //ab
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
s3 := strutil.PadEnd("abcd", 6, "mno")
fmt.Println(s3) //abcdmn
s4 := strutil.PadEnd("abc", 6, "ab")
fmt.Println(s4) //abcaba
// Output:
// foo
// foo
// foo
// foob
// fooba
// foobar
// foobarb
}
```
### <span id="PadStart">PadStart</span>
<p>Pads string on the left side if it's shorter than size.</p>
@@ -482,23 +488,33 @@ import (
)
func main() {
s1 := strutil.PadStart("a", 1, "b")
fmt.Println(s1) //a
result1 := strutil.PadStart("foo", 1, "bar")
result2 := strutil.PadStart("foo", 2, "bar")
result3 := strutil.PadStart("foo", 3, "bar")
result4 := strutil.PadStart("foo", 4, "bar")
result5 := strutil.PadStart("foo", 5, "bar")
result6 := strutil.PadStart("foo", 6, "bar")
result7 := strutil.PadStart("foo", 7, "bar")
s2 := strutil.PadStart("a", 2, "b")
fmt.Println(s2) //ba
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
s3 := strutil.PadStart("abcd", 6, "mno")
fmt.Println(s3) //mnabcd
s4 := strutil.PadStart("abc", 6, "ab")
fmt.Println(s4) //abaabc
// Output:
// foo
// foo
// foo
// bfoo
// bafoo
// barfoo
// barbfoo
}
```
### <span id="Reverse">Reverse</span>
<p>Return string whose char order is reversed to the given string.</p>
@@ -516,16 +532,18 @@ import (
)
func main() {
s1 := strutil.ReverseStr("abc")
fmt.Println(s1) //cba
s := "foo"
rs := strutil.Reverse(s)
s2 := strutil.ReverseStr("12345")
fmt.Println(s2) //54321
fmt.Println(s)
fmt.Println(rs)
// Output:
// foo
// oof
}
```
### <span id="SnakeCase">SnakeCase</span>
<p>Coverts string to snake_case, non letters and numbers will be ignored.</p>
@@ -543,24 +561,22 @@ import (
)
func main() {
s1 := strutil.SnakeCase("Foo Bar-")
fmt.Println(s1) //foo_bar
strings := []string{"", "foo-bar", "Foo Bar-", "FOOBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.SnakeCase("foo_Bar")
fmt.Println(s2) //foo_bar
for _, v := range strings {
s := strutil.SnakeCase(v)
fmt.Println(s)
}
s3 := strutil.SnakeCase("fooBar")
fmt.Println(s3) //foo_bar
s4 := strutil.SnakeCase("__FOO_BAR__")
fmt.Println(s4) //foo_bar
s5 := strutil.SnakeCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s5) //foo_1_1_bar
// Output:
//
// foo_bar
// foo_bar
// foobar
// foo_1_1_bar
}
```
### <span id="UpperSnakeCase">UpperSnakeCase</span>
<p>Coverts string to upper KEBAB-CASE, non letters and numbers will be ignored.</p>
@@ -578,24 +594,22 @@ import (
)
func main() {
s1 := strutil.UpperSnakeCase("Foo Bar-")
fmt.Println(s1) //FOO_BAR
strings := []string{"", "foo-bar", "Foo Bar-", "FooBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.UpperSnakeCase("foo_Bar")
fmt.Println(s2) //FOO_BAR
for _, v := range strings {
s := strutil.UpperSnakeCase(v)
fmt.Println(s)
}
s3 := strutil.UpperSnakeCase("fooBar")
fmt.Println(s3) //FOO_BAR
s4 := strutil.UpperSnakeCase("__FOO_BAR__")
fmt.Println(s4) //FOO_BAR
s5 := strutil.UpperSnakeCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s5) //FOO_1_1_BAR
// Output:
//
// FOO_BAR
// FOO_BAR
// FOO_BAR
// FOO_1_1_BAR
}
```
### <span id="SplitEx">SplitEx</span>
<p>Split a given string whether the result contains empty string.</p>
@@ -613,25 +627,28 @@ import (
)
func main() {
arr1 := strutil.SplitEx(" a b c ", "", true)
fmt.Println(arr1) //[]string{}
result1 := strutil.SplitEx(" a b c ", "", true)
arr2 := strutil.SplitEx(" a b c ", " ", false)
fmt.Println(arr2) //[]string{"", "a", "b", "c", ""}
result2 := strutil.SplitEx(" a b c ", " ", false)
result3 := strutil.SplitEx(" a b c ", " ", true)
arr3 := strutil.SplitEx(" a b c ", " ", true)
fmt.Println(arr3) //[]string{"a", "b", "c"}
result4 := strutil.SplitEx("a = b = c = ", " = ", false)
result5 := strutil.SplitEx("a = b = c = ", " = ", true)
arr4 := strutil.SplitEx(" a = b = c = ", " = ", false)
fmt.Println(arr4) //[]string{" a", "b", "c", ""}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
arr5 := strutil.SplitEx(" a = b = c = ", " = ", true)
fmt.Println(arr5) //[]string{" a", "b", "c"}
// Output:
// []
// [ a b c ]
// [a b c]
// [a b c ]
}
```
### <span id="Substring">Substring</span>
<p>Returns a substring of the specified length starting at the specified offset position.</p>
@@ -650,22 +667,26 @@ import (
func main() {
result1 := strutil.Substring("abcde", 1, 3)
fmt.Println(result1) //bcd
result2 := strutil.Substring("abcde", 1, 5)
fmt.Println(result2) //bcde
result3 := strutil.Substring("abcde", -1, 3)
fmt.Println(result3) //e
result4 := strutil.Substring("abcde", -2, 2)
fmt.Println(result4) //de
result5 := strutil.Substring("abcde", -2, 3)
fmt.Println(result5) //de
result6 := strutil.Substring("你好,欢迎你", 0, 2)
fmt.Println(result6) //你好
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
// Output:
// bcd
// bcde
// e
// de
// de
// 你好
}
```
@@ -686,26 +707,25 @@ import (
)
func main() {
s1 := strutil.Wrap("ab", "")
fmt.Println(s1) //ab
result1 := strutil.Wrap("foo", "")
result2 := strutil.Wrap("foo", "*")
result3 := strutil.Wrap("'foo'", "'")
result4 := strutil.Wrap("", "*")
s2 := strutil.Wrap("", "*")
fmt.Println(s2) //""
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
s3 := strutil.Wrap("ab", "*")
fmt.Println(s3) //*ab*
s4 := strutil.Wrap("ab", "\"")
fmt.Println(s4) //\"ab\"
s5 := strutil.Wrap("ab", "'")
fmt.Println(s5) //'ab'
// Output:
// foo
// *foo*
// ''foo''
//
}
```
### <span id="Wrap">Wrap</span>
<p>Unwrap a given string from anther string. will change source string.</p>
@@ -723,20 +743,24 @@ import (
)
func main() {
s1 := strutil.Unwrap("ab", "")
fmt.Println(s1) //ab
result1 := strutil.Unwrap("foo", "")
result2 := strutil.Unwrap("*foo*", "*")
result3 := strutil.Unwrap("*foo", "*")
result4 := strutil.Unwrap("foo*", "*")
result5 := strutil.Unwrap("**foo**", "*")
s2 := strutil.Unwrap("ab", "*")
fmt.Println(s2) //ab
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.Unwrap("**ab**", "*")
fmt.Println(s3) //*ab*
s4 := strutil.Unwrap("*ab", "*")
fmt.Println(s4) //*ab
s5 := strutil.Unwrap("***", "**")
fmt.Println(s5) //***
// Output:
// foo
// foo
// *foo
// foo*
// *foo*
}
```

View File

@@ -49,14 +49,14 @@ import (
### <span id="After">After</span>
<p>返回源字符串中特定字符串首次出现时的位置之后的子字符串</p>
<p>返回源字符串中特定字符串首次出现时的位置之后的子字符串</p>
<b>函数签名:</b>
```go
func After(s, char string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -65,28 +65,36 @@ import (
)
func main() {
s1 := strutil.After("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.After("foo", "")
result2 := strutil.After("foo", "foo")
result3 := strutil.After("foo/bar", "foo")
result4 := strutil.After("foo/bar", "/")
result5 := strutil.After("foo/bar/baz", "/")
s2 := strutil.After("github.com/test/lancet", "/")
fmt.Println(s2) //test/lancet
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.After("github.com/test/lancet", "test")
fmt.Println(s3) // /lancet
// Output:
// foo
//
// /bar
// bar
// bar/baz
}
```
### <span id="AfterLast">AfterLast</span>
<p>返回源字符串中指定字符串最后一次出现时的位置之后的子字符串</p>
<p>返回源字符串中指定字符串最后一次出现时的位置之后的子字符串</p>
<b>函数签名:</b>
```go
func AfterLast(s, char string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -95,29 +103,36 @@ import (
)
func main() {
s1 := strutil.AfterLast("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.AfterLast("foo", "")
result2 := strutil.AfterLast("foo", "foo")
result3 := strutil.AfterLast("foo/bar", "/")
result4 := strutil.AfterLast("foo/bar/baz", "/")
result5 := strutil.AfterLast("foo/bar/foo/baz", "foo")
s2 := strutil.AfterLast("github.com/test/lancet", "/")
fmt.Println(s2) //lancet
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.AfterLast("github.com/test/test/lancet", "test")
fmt.Println(s3) // /lancet
// Output:
// foo
//
// bar
// baz
// /baz
}
```
### <span id="Before">Before</span>
<p>返回源字符串中指定字符串第一次出现时的位置之前的子字符串</p>
<p>返回源字符串中指定字符串第一次出现时的位置之前的子字符串</p>
<b>函数签名:</b>
```go
func Before(s, char string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -126,29 +141,33 @@ import (
)
func main() {
s1 := strutil.Before("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.Before("foo", "")
result2 := strutil.Before("foo", "foo")
result3 := strutil.Before("foo/bar", "/")
result4 := strutil.Before("foo/bar/baz", "/")
s2 := strutil.Before("github.com/test/lancet", "/")
fmt.Println(s2) //github.com
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
s3 := strutil.Before("github.com/test/lancet", "test")
fmt.Println(s3) // github.com/
// Output:
// foo
//
// foo
// foo
}
```
### <span id="BeforeLast">BeforeLast</span>
<p>返回源字符串中指定字符串最后一次出现时的位置之前的子字符串</p>
<p>返回源字符串中指定字符串最后一次出现时的位置之前的子字符串</p>
<b>函数签名:</b>
```go
func BeforeLast(s, char string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -157,29 +176,33 @@ import (
)
func main() {
s1 := strutil.BeforeLast("lancet", "")
fmt.Println(s1) //lancet
result1 := strutil.BeforeLast("foo", "")
result2 := strutil.BeforeLast("foo", "foo")
result3 := strutil.BeforeLast("foo/bar", "/")
result4 := strutil.BeforeLast("foo/bar/baz", "/")
s2 := strutil.BeforeLast("github.com/test/lancet", "/")
fmt.Println(s2) //github.com/test
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
s3 := strutil.BeforeLast("github.com/test/test/lancet", "test")
fmt.Println(s3) //github.com/test/
// Output:
// foo
//
// foo
// foo/bar
}
```
### <span id="CamelCase">CamelCase</span>
<p>将字符串转换为驼峰式字符串, 非字母和数字会被忽略</p>
<p>将字符串转换为驼峰式字符串, 非字母和数字会被忽略</p>
<b>函数签名:</b>
```go
func CamelCase(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -188,35 +211,97 @@ import (
)
func main() {
s1 := strutil.CamelCase("foo_bar")
fmt.Println(s1) //fooBar
strings := []string{"", "foobar", "&FOO:BAR$BAZ", "$foo%", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.CamelCase("Foo-Bar")
fmt.Println(s2) //fooBar
for _, v := range strings {
s := strutil.CamelCase(v)
fmt.Println(s)
}
s3 := strutil.CamelCase("Foo&bar")
fmt.Println(s3) //fooBar
s4 := strutil.CamelCase("foo bar")
fmt.Println(s4) //fooBar
s4 := strutil.CamelCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s4) //foo11Bar
// Output:
//
// foobar
// fooBarBaz
// foo
// foo11Bar
}
```
### <span id="KebabCase">KebabCase</span>
<p>将字符串转换为kebab-case, 非字母和数字会被忽略。</p>
<b>函数签名:</b>
```go
func KebabCase(s string) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/strutil"
)
func main() {
strings := []string{"", "foo-bar", "Foo Bar-", "FOOBAR", "Foo-#1😄$_%^&*(1bar"}
for _, v := range strings {
s := strutil.KebabCase(v)
fmt.Println(s)
}
// Output:
//
// foo-bar
// foo-bar
// foobar
// foo-1-1-bar
}
```
### <span id="UpperKebabCase">UpperKebabCase</span>
<p>将字符串转换为大写KEBAB-CASE, 非字母和数字会被忽略。</p>
<b>函数签名:</b>
```go
func UpperKebabCase(s string) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/strutil"
)
func main() {
strings := []string{"", "foo-bar", "Foo Bar-", "FooBAR", "Foo-#1😄$_%^&*(1bar"}
for _, v := range strings {
s := strutil.UpperKebabCase(v)
fmt.Println(s)
}
// Output:
//
// FOO-BAR
// FOO-BAR
// FOO-BAR
// FOO-1-1-BAR
}
```
### <span id="Capitalize">Capitalize</span>
<p>将字符串的第一个字符转换为大写</p>
<p>将字符串的第一个字符转换为大写</p>
<b>函数签名:</b>
```go
func Capitalize(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -225,28 +310,31 @@ import (
)
func main() {
s1 := strutil.Capitalize("foo")
fmt.Println(s1) //foo
strings := []string{"", "Foo", "_foo", "fooBar", "foo-bar"}
s2 := strutil.Capitalize("Foo")
fmt.Println(s2) //foo
for _, v := range strings {
s := strutil.Capitalize(v)
fmt.Println(s)
}
s3 := strutil.Capitalize("FOo"
fmt.Println(s3) //fOo
// Output:
//
// Foo
// _foo
// Foobar
// Foo-bar
}
```
### <span id="IsString">IsString</span>
<p>判断传入参数的数据类型是否为字符串</p>
<p>判断传入参数的数据类型是否为字符串</p>
<b>函数签名:</b>
```go
func IsString(v any) bool
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -255,93 +343,36 @@ import (
)
func main() {
fmt.Println(strutil.IsString("lancet")) //true
fmt.Println(strutil.IsString("")) //true
result1 := strutil.IsString("")
result2 := strutil.IsString("a")
result3 := strutil.IsString(1)
result4 := strutil.IsString(true)
result5 := strutil.IsString([]string{"a"})
fmt.Println(strutil.IsString(1)) //false
fmt.Println(strutil.IsString("")) //false
fmt.Println(strutil.IsString([]string{})) //false
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// true
// true
// false
// false
// false
}
```
### <span id="KebabCase">KebabCase</span>
<p>将字符串转换为kebab-case, 非字母和数字会被忽略</p>
<b>函数签名:</b>
```go
func KebabCase(s string) string
```
<b>例子:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/strutil"
)
func main() {
s1 := strutil.KebabCase("Foo Bar-")
fmt.Println(s1) //foo-bar
s2 := strutil.KebabCase("foo_Bar")
fmt.Println(s2) //foo-bar
s3 := strutil.KebabCase("fooBar")
fmt.Println(s3) //foo-bar
s4 := strutil.KebabCase("__FOO_BAR__")
fmt.Println(s4) //foo-bar
}
```
### <span id="UpperKebabCase">UpperKebabCase</span>
<p>将字符串转换为大写KEBAB-CASE, 非字母和数字会被忽略</p>
<b>函数签名:</b>
```go
func KebabCase(s string) string
```
<b>例子:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/strutil"
)
func main() {
s1 := strutil.UpperKebabCase("Foo Bar-")
fmt.Println(s1) //FOO-BAR
s2 := strutil.UpperKebabCase("foo_Bar")
fmt.Println(s2) //FOO-BAR
s3 := strutil.UpperKebabCase("fooBar")
fmt.Println(s3) //FOO-BAR
s4 := strutil.UpperKebabCase("__FOO_BAR__")
fmt.Println(s4) //FOO-BAR
}
```
### <span id="LowerFirst">LowerFirst</span>
<p>将字符串的第一个字符转换为小写</p>
<p>将字符串的第一个字符转换为小写</p>
<b>函数签名:</b>
```go
func LowerFirst(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -350,32 +381,30 @@ import (
)
func main() {
s1 := strutil.LowerFirst("foo")
fmt.Println(s1) //foo
strings := []string{"", "bar", "BAr", "Bar大"}
s2 := strutil.LowerFirst("BAR")
fmt.Println(s2) //bAR
for _, v := range strings {
s := strutil.LowerFirst(v)
fmt.Println(s)
}
s3 := strutil.LowerFirst("FOo")
fmt.Println(s3) //fOo
s4 := strutil.LowerFirst("fOo大")
fmt.Println(s4) //fOo
// Output:
//
// bar
// bAr
// bar
}
```
### <span id="UpperFirst">UpperFirst</span>
<p>将字符串的第一个字符转换为大写形式</p>
<p>将字符串的第一个字符转换为大写形式</p>
<b>函数签名:</b>
```go
func UpperFirst(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -384,32 +413,30 @@ import (
)
func main() {
s1 := strutil.UpperFirst("foo")
fmt.Println(s1) //Foo
strings := []string{"", "bar", "BAr", "bar大"}
s2 := strutil.UpperFirst("bAR")
fmt.Println(s2) //BAR
for _, v := range strings {
s := strutil.UpperFirst(v)
fmt.Println(s)
}
s3 := strutil.UpperFirst("FOo")
fmt.Println(s3) //FOo
s4 := strutil.UpperFirst("fOo大")
fmt.Println(s4) //FOo
// Output:
//
// Bar
// BAr
// Bar
}
```
### <span id="PadEnd">PadEnd</span>
<p>如果字符串长度短于size则在右侧填充字符串</p>
<p>如果字符串长度短于size则在右侧填充字符串</p>
<b>函数签名:</b>
```go
func PadEnd(source string, size int, padStr string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -418,32 +445,42 @@ import (
)
func main() {
s1 := strutil.PadEnd("a", 1, "b")
fmt.Println(s1) //a
result1 := strutil.PadEnd("foo", 1, "bar")
result2 := strutil.PadEnd("foo", 2, "bar")
result3 := strutil.PadEnd("foo", 3, "bar")
result4 := strutil.PadEnd("foo", 4, "bar")
result5 := strutil.PadEnd("foo", 5, "bar")
result6 := strutil.PadEnd("foo", 6, "bar")
result7 := strutil.PadEnd("foo", 7, "bar")
s2 := strutil.PadEnd("a", 2, "b")
fmt.Println(s2) //ab
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
s3 := strutil.PadEnd("abcd", 6, "mno")
fmt.Println(s3) //abcdmn
s4 := strutil.PadEnd("abc", 6, "ab")
fmt.Println(s4) //abcaba
// Output:
// foo
// foo
// foo
// foob
// fooba
// foobar
// foobarb
}
```
### <span id="PadStart">PadStart</span>
<p>如果字符串长度短于size则在左侧填充字符串</p>
<p>如果字符串长度短于size则在左侧填充字符串</p>
<b>函数签名:</b>
```go
func PadStart(source string, size int, padStr string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -452,32 +489,42 @@ import (
)
func main() {
s1 := strutil.PadStart("a", 1, "b")
fmt.Println(s1) //a
result1 := strutil.PadStart("foo", 1, "bar")
result2 := strutil.PadStart("foo", 2, "bar")
result3 := strutil.PadStart("foo", 3, "bar")
result4 := strutil.PadStart("foo", 4, "bar")
result5 := strutil.PadStart("foo", 5, "bar")
result6 := strutil.PadStart("foo", 6, "bar")
result7 := strutil.PadStart("foo", 7, "bar")
s2 := strutil.PadStart("a", 2, "b")
fmt.Println(s2) //ba
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
fmt.Println(result7)
s3 := strutil.PadStart("abcd", 6, "mno")
fmt.Println(s3) //mnabcd
s4 := strutil.PadStart("abc", 6, "ab")
fmt.Println(s4) //abaabc
// Output:
// foo
// foo
// foo
// bfoo
// bafoo
// barfoo
// barbfoo
}
```
### <span id="Reverse">Reverse</span>
<p>返回字符顺序与给定字符串相反的字符串</p>
<p>返回字符顺序与给定字符串相反的字符串</p>
<b>函数签名:</b>
```go
func Reverse(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -486,25 +533,27 @@ import (
)
func main() {
s1 := strutil.ReverseStr("abc")
fmt.Println(s1) //cba
s := "foo"
rs := strutil.Reverse(s)
s2 := strutil.ReverseStr("12345")
fmt.Println(s2) //54321
fmt.Println(s)
fmt.Println(rs)
// Output:
// foo
// oof
}
```
### <span id="SnakeCase">SnakeCase</span>
<p>将字符串转换为snake_case形式, 非字母和数字会被忽略</p>
<p>将字符串转换为snake_case形式, 非字母和数字会被忽略</p>
<b>函数签名:</b>
```go
func SnakeCase(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -513,33 +562,31 @@ import (
)
func main() {
s1 := strutil.SnakeCase("Foo Bar-")
fmt.Println(s1) //foo_bar
strings := []string{"", "foo-bar", "Foo Bar-", "FOOBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.SnakeCase("foo_Bar")
fmt.Println(s2) //foo_bar
for _, v := range strings {
s := strutil.SnakeCase(v)
fmt.Println(s)
}
s3 := strutil.SnakeCase("fooBar")
fmt.Println(s3) //foo_bar
s4 := strutil.SnakeCase("__FOO_BAR__")
fmt.Println(s4) //foo_bar
s5 := strutil.SnakeCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s5) //foo_1_1_bar
// Output:
//
// foo_bar
// foo_bar
// foobar
// foo_1_1_bar
}
```
### <span id="UpperSnakeCase">UpperSnakeCase</span>
<p>将字符串转换为大写SNAKE_CASE形式, 非字母和数字会被忽略</p>
<p>将字符串转换为大写SNAKE_CASE形式, 非字母和数字会被忽略</p>
<b>函数签名:</b>
```go
func SnakeCase(s string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -548,34 +595,31 @@ import (
)
func main() {
s1 := strutil.UpperSnakeCase("Foo Bar-")
fmt.Println(s1) //FOO_BAR
strings := []string{"", "foo-bar", "Foo Bar-", "FooBAR", "Foo-#1😄$_%^&*(1bar"}
s2 := strutil.UpperSnakeCase("foo_Bar")
fmt.Println(s2) //FOO_BAR
for _, v := range strings {
s := strutil.UpperSnakeCase(v)
fmt.Println(s)
}
s3 := strutil.UpperSnakeCase("fooBar")
fmt.Println(s3) //FOO_BAR
s4 := strutil.UpperSnakeCase("__FOO_BAR__")
fmt.Println(s4) //FOO_BAR
s5 := strutil.UpperSnakeCase("Foo-#1😄$_%^&*(1bar")
fmt.Println(s5) //FOO_1_1_BAR
// Output:
//
// FOO_BAR
// FOO_BAR
// FOO_BAR
// FOO_1_1_BAR
}
```
### <span id="SplitEx">SplitEx</span>
<p>分割字符串为切片removeEmptyString参数指定是否去除空字符串</p>
<p>分割字符串为切片removeEmptyString参数指定是否去除空字符串</p>
<b>函数签名:</b>
```go
func SplitEx(s, sep string, removeEmptyString bool) []string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -584,32 +628,37 @@ import (
)
func main() {
arr1 := strutil.SplitEx(" a b c ", "", true)
fmt.Println(arr1) //[]string{}
result1 := strutil.SplitEx(" a b c ", "", true)
arr2 := strutil.SplitEx(" a b c ", " ", false)
fmt.Println(arr2) //[]string{"", "a", "b", "c", ""}
result2 := strutil.SplitEx(" a b c ", " ", false)
result3 := strutil.SplitEx(" a b c ", " ", true)
arr3 := strutil.SplitEx(" a b c ", " ", true)
fmt.Println(arr3) //[]string{"a", "b", "c"}
result4 := strutil.SplitEx("a = b = c = ", " = ", false)
result5 := strutil.SplitEx("a = b = c = ", " = ", true)
arr4 := strutil.SplitEx(" a = b = c = ", " = ", false)
fmt.Println(arr4) //[]string{" a", "b", "c", ""}
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
arr5 := strutil.SplitEx(" a = b = c = ", " = ", true)
fmt.Println(arr5) //[]string{" a", "b", "c"}
// Output:
// []
// [ a b c ]
// [a b c]
// [a b c ]
}
```
### <span id="Substring">Substring</span>
<p>根据指定的位置和长度截取字符串</p>
<p>根据指定的位置和长度截取字符串</p>
<b>函数签名:</b>
```go
func Substring(s string, offset int, length uint) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -619,35 +668,38 @@ import (
func main() {
result1 := strutil.Substring("abcde", 1, 3)
fmt.Println(result1) //bcd
result2 := strutil.Substring("abcde", 1, 5)
fmt.Println(result2) //bcde
result3 := strutil.Substring("abcde", -1, 3)
fmt.Println(result3) //e
result4 := strutil.Substring("abcde", -2, 2)
fmt.Println(result4) //de
result5 := strutil.Substring("abcde", -2, 3)
fmt.Println(result5) //de
result6 := strutil.Substring("你好,欢迎你", 0, 2)
fmt.Println(result6) //你好
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
fmt.Println(result6)
// Output:
// bcd
// bcde
// e
// de
// de
// 你好
}
```
### <span id="Wrap">Wrap</span>
<p>用另一个字符串包裹一个字符串</p>
<p>用另一个字符串包裹一个字符串</p>
<b>函数签名:</b>
```go
func Wrap(str string, wrapWith string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -656,35 +708,34 @@ import (
)
func main() {
s1 := strutil.Wrap("ab", "")
fmt.Println(s1) //ab
result1 := strutil.Wrap("foo", "")
result2 := strutil.Wrap("foo", "*")
result3 := strutil.Wrap("'foo'", "'")
result4 := strutil.Wrap("", "*")
s2 := strutil.Wrap("", "*")
fmt.Println(s2) //""
s3 := strutil.Wrap("ab", "*")
fmt.Println(s3) //*ab*
s4 := strutil.Wrap("ab", "\"")
fmt.Println(s4) //\"ab\"
s5 := strutil.Wrap("ab", "'")
fmt.Println(s5) //'ab'
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
// Output:
// foo
// *foo*
// ''foo''
//
}
```
### <span id="Unwrap">Unwrap</span>
<p>用另一个字符串解开包裹一个字符串</p>
### <span id="Wrap">Wrap</span>
<p>用另一个字符串解开包裹一个字符串。</p>
<b>函数签名:</b>
```go
func Unwrap(str string, wrapToken string) string
```
<b>例:</b>
<b>例:</b>
```go
import (
@@ -693,28 +744,23 @@ import (
)
func main() {
s1 := strutil.Unwrap("ab", "")
fmt.Println(s1) //ab
result1 := strutil.Unwrap("foo", "")
result2 := strutil.Unwrap("*foo*", "*")
result3 := strutil.Unwrap("*foo", "*")
result4 := strutil.Unwrap("foo*", "*")
result5 := strutil.Unwrap("**foo**", "*")
s2 := strutil.Unwrap("ab", "*")
fmt.Println(s2) //ab
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
s3 := strutil.Unwrap("**ab**", "*")
fmt.Println(s3) //*ab*
s4 := strutil.Unwrap("*ab", "*")
fmt.Println(s4) //*ab
s5 := strutil.Unwrap("***", "**")
fmt.Println(s5) //***
// Output:
// foo
// foo
// *foo
// foo*
// *foo*
}
```
```

View File

@@ -47,7 +47,7 @@ func Before(n int, fn any) func(args ...any) []reflect.Value {
type CurryFn[T any] func(...T) T
// New make a curry function for specific value.
// Play: Todo
// Play: https://go.dev/play/p/5HopfDwANKX
func (cf CurryFn[T]) New(val T) func(...T) T {
return func(vals ...T) T {
args := append([]T{val}, vals...)
@@ -56,7 +56,7 @@ func (cf CurryFn[T]) New(val T) func(...T) T {
}
// Compose compose the functions from right to left.
// Play: Todo
// Play: https://go.dev/play/p/KKfugD4PKYF
func Compose[T any](fnList ...func(...T) T) func(...T) T {
return func(args ...T) T {
firstFn := fnList[0]

View File

@@ -114,15 +114,15 @@ func ExampleSchedule() {
count++
}
stop := Schedule(1*time.Second, increase)
stop := Schedule(2*time.Second, increase)
time.Sleep(3 * time.Second)
time.Sleep(2 * time.Second)
close(stop)
fmt.Println(count)
// Output:
// 3
// 2
}
func ExamplePipeline() {

View File

@@ -3,7 +3,7 @@ package function
import "time"
// Watcher is used for record code excution time
// Play: Todo
// Play: https://go.dev/play/p/l2yrOpCLd1I
type Watcher struct {
startTime int64
stopTime int64

View File

@@ -55,7 +55,7 @@ func Factorial(x uint) uint {
}
// Percent calculate the percentage of value to total.
// Play: Todo
// Play: https://go.dev/play/p/QQM9B13coSP
func Percent(val, total float64, n int) float64 {
if total == 0 {
return float64(0)

View File

@@ -283,7 +283,7 @@ func SplitEx(s, sep string, removeEmptyString bool) []string {
}
// Substring returns a substring of the specified length starting at the specified offset position.
// Play: Todo
// Play: https://go.dev/play/p/q3sM6ehnPDp
func Substring(s string, offset int, length uint) string {
rs := []rune(s)
size := len(rs)