test: fix TestEventBus

* fix: json tag omitempty convert error

* feat(validator): add IsIpPort

- Add IsIpPort function to check if a string is in the format ip:port
- Update validator_test.go to include tests for the new IsIpPort function
- Add an example test for IsIpPort in validator_example_test.go

README.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.3.4-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.3.5-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -506,9 +506,24 @@ import "github.com/duke-git/lancet/v2/datetime"
 -   **<big>AddMinute</big>** : add or sub day to the time.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddMinute)]
     [[play](https://go.dev/play/p/nT1heB1KUUK)]
+-   **<big>AddWeek</big>** : add or sub week to time.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddWeek)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddMonth</big>** : add or sub months to time.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddMonth)]
+    [[play](https://go.dev/play/p/todo)]
 -   **<big>AddYear</big>** : add or sub year to the time.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddYear)]
     [[play](https://go.dev/play/p/MqW2ujnBx10)]
+-   **<big>AddDaySafe</big>** : add or sub days to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddDaySafe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddMonthSafe</big>** : add or sub months to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddMonthSafe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddYearSafe</big>** : Add or sub years to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#AddYearSafe)]
+    [[play](https://go.dev/play/p/todo)]
 -   **<big>BeginOfMinute</big>** : return the date time at the begin of minute of specific date.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datetime.md#BeginOfMinute)]
     [[play](https://go.dev/play/p/ieOLVJ9CiFT)]
@@ -680,6 +695,45 @@ import optional "github.com/duke-git/lancet/v2/datastructure/optional"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/datastructure/optional.md)]
       
 
+<h3 id="eventbus"> 9. EventBus is an event bus used for handling events within an application. &nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">Index</a></h3>
+
+```go
+import "github.com/duke-git/lancet/v2/eventbus"
+```
+
+#### 函数列表:
+
+-   **<big>NewEventBus</big>** : Create an EventBus instance.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#NewEventBus)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Subscribe</big>** : subscribes to an event with a specific event topic and listener function.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#Subscribe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Unsubscribe</big>** : unsubscribes from an event with a specific event topic and listener function.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#Unsubscribe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Publish</big>** : publishes an event with a specific event topic and data payload.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#Publish)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>ClearListeners</big>** : clears all the listeners.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#ClearListeners)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>ClearListenersByTopic</big>** : clears all the listeners by topic.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#ClearListenersByTopic)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetListenersCount</big>** : returns the number of listeners for a specific event topic.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#GetListenersCount)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetAllListenersCount</big>** : returns the total number of all listeners.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#GetAllListenersCount)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetEvents</big>** : returns all the events topics.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#GetEvents)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>SetErrorHandler</big>** : sets the error handler function.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/eventbus.md#SetErrorHandler)]
+    [[play](https://go.dev/play/p/todo)]
+
 <h3 id="fileutil"> 9. Fileutil package implements some basic functions for file operations. &nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">index</a></h3>
 
 ```go
@@ -1423,6 +1477,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>EqualWith</big>** : checks if two slices are equal with comparator func.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#EqualWith)]
     [[play](https://go.dev/play/p/b9iygtgsHI1)]
+-   **<big>EqualUnordered</big>** : Checks if two slices are equal: the same length and all elements value are equal (unordered).
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#EqualUnordered)]
+    [[play](todo)]
 -   **<big>Every</big>** : return true if all of the values in the slice pass the predicate function.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#Every)]
     [[play](https://go.dev/play/p/R8U6Sl-j8cD)]
@@ -1522,6 +1579,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>Shuffle</big>** : shuffle the slice.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#Shuffle)]
     [[play](https://go.dev/play/p/YHvhnWGU3Ge)]
+-   **<big>ShuffleCopy</big>** : return a new slice with elements shuffled.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#ShuffleCopy)]
+    [[play](todo)]
 -   **<big>IsAscending</big>** : Checks if a slice is ascending order.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#IsAscending)]
     [[play](https://go.dev/play/p/9CtsFjet4SH)]
@@ -1668,6 +1728,9 @@ import "github.com/duke-git/lancet/v2/stream"
 -   **<big>Reverse</big>** : returns a stream whose elements are reverse order of given stream.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/stream.md#Reverse)]
     [[play](https://go.dev/play/p/A8_zkJnLHm4)]
+-   **<big>ReverseCopy</big>** : returns a new slice of element order is reversed to the given slice.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/stream.md#ReverseCopy)]
+    [[play](todo)]
 -   **<big>Range</big>** : returns a stream whose elements are in the range from start(included) to end(excluded) original stream.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/stream.md#Range)]
     [[play](https://go.dev/play/p/indZY5V2f4j)]
@@ -1897,7 +1960,9 @@ import "github.com/duke-git/lancet/v2/strutil"
 -   **<big>ExtractContent</big>** : extracts the content between the start and end strings in the source string.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/strutil.md#ExtractContent)]
     [[play](https://go.dev/play/p/Ay9UIk7Rum9)]
-
+-   **<big>FindAllOccurrences</big>** : Returns the positions of all occurrences of a substring in a string.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/strutil.md#FindAllOccurrences)]
+    [[play](todo)]
 
 <h3 id="system"> 22. System package contain some functions about os, runtime, shell command. &nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">index</a></h3>
 
@@ -2151,6 +2216,9 @@ import "github.com/duke-git/lancet/v2/validator"
 -   **<big>IsIpV6</big>** : check if the string is ipv6.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/validator.md#IsIpV6)]
     [[play](https://go.dev/play/p/AHA0r0AzIdC)]
+-   **<big>IsIpPort</big>** : check if the string is ip:port.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/validator.md#IsIpPort)]
+    [[play](todo)]
 -   **<big>IsStrongPassword</big>** : check if the string is strong password.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/validator.md#IsStrongPassword)]
     [[play](https://go.dev/play/p/QHdVcSQ3uDg)]

README_zh-CN.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.3.4-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.3.5-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -507,9 +507,24 @@ import "github.com/duke-git/lancet/v2/datetime"
 -   **<big>AddMinute</big>** : 将日期加/减分钟数。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddMinute)]
     [[play](https://go.dev/play/p/nT1heB1KUUK)]
+-   **<big>AddWeek</big>** : 将日期加/减星期数.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddWeek)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddMonth</big>** : 将日期加/减月数.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddMonth)]
+    [[play](https://go.dev/play/p/todo)]
 -   **<big>AddYear</big>** : 将日期加/减分年数。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddYear)]
     [[play](https://go.dev/play/p/MqW2ujnBx10)]
+-   **<big>AddDaySafe</big>** : 增加/减少指定的天数，并确保日期是有效日期。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddDaySafe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddMonthSafe</big>** : 增加/减少指定的月份，并确保日期是有效日期。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddMonthSafe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>AddYearSafe</big>** : 增加/减少指定的年份，并确保日期是有效日期。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddYearSafe)]
+    [[play](https://go.dev/play/p/todo)]
 -   **<big>BeginOfMinute</big>** : 返回指定时间的分钟开始时间。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfMinute)]
     [[play](https://go.dev/play/p/ieOLVJ9CiFT)]
@@ -679,7 +694,46 @@ import hashmap "github.com/duke-git/lancet/v2/datastructure/hashmap"
 -   **<big>Hashmap</big>** : 哈希映射。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/hashmap.md)]
 
-<h3 id="fileutil"> 9. fileutil 包含文件基本操作。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="eventbus"> 9. EventbBus是一个事件总线，用于在应用程序中处理事件。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+
+```go
+import "github.com/duke-git/lancet/v2/eventbus"
+```
+
+#### 函数列表:
+
+-   **<big>NewEventBus</big>** : 创建EventBus实例。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#NewEventBus)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Subscribe</big>** : 订阅具有特定事件主题和监听函数的事件。支持异步，事件优先级，事件过滤器。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#Subscribe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Unsubscribe</big>** : 取消订阅具有特定事件主题的事件。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#Unsubscribe)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>Publish</big>** : 发布一个带有特定事件主题和数据负载的事件。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#Publish)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>ClearListeners</big>** : 清空所有事件监听器。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#ClearListeners)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>ClearListenersByTopic</big>** : 清空特定事件监听器。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#ClearListenersByTopic)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetListenersCount</big>** : 获取特定事件的监听器数量。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#GetListenersCount)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetAllListenersCount</big>** : 获取所有事件的监听器数量。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#GetAllListenersCount)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>GetEvents</big>** : 获取所有事件的topic。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#GetEvents)]
+    [[play](https://go.dev/play/p/todo)]
+-   **<big>SetErrorHandler</big>** : 设置事件的错误处理函数。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/eventbus.md#SetErrorHandler)]
+    [[play](https://go.dev/play/p/todo)]
+
+<h3 id="fileutil"> 10. fileutil 包含文件基本操作。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/fileutil"
@@ -779,7 +833,7 @@ import "github.com/duke-git/lancet/v2/fileutil"
     [[play](https://go.dev/play/p/iLRrDBhE38E)]
 
 
-<h3 id="formatter"> 10. formatter 格式化器包含一些数据格式化处理方法。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="formatter"> 11. formatter 格式化器包含一些数据格式化处理方法。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/formatter"
@@ -809,7 +863,7 @@ import "github.com/duke-git/lancet/v2/formatter"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#ParseBinaryBytes)]
     [[play](https://go.dev/play/p/69v1tTT62x8)]
 
-<h3 id="function"> 11. function 函数包控制函数执行流程，包含部分函数式编程。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="function"> 12. function 函数包控制函数执行流程，包含部分函数式编程。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/function"
@@ -874,7 +928,7 @@ import "github.com/duke-git/lancet/v2/function"
 
 
 
-<h3 id="maputil"> 12. maputil 包括一些操作 map 的函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="maputil"> 13. maputil 包括一些操作 map 的函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/maputil"
@@ -1045,7 +1099,7 @@ import "github.com/duke-git/lancet/v2/maputil"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#GetOrDefault)]
     [[play](https://go.dev/play/p/99QjSYSBdiM)]
 
-<h3 id="mathutil"> 13. mathutil 包实现了一些数学计算的函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="mathutil"> 14. mathutil 包实现了一些数学计算的函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/mathutil"
@@ -1156,7 +1210,7 @@ import "github.com/duke-git/lancet/v2/mathutil"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Combination)]
     [[play](https://go.dev/play/p/ENFQRDQUFi9)]
 
-<h3 id="netutil"> 14. netutil 网络包支持获取 ip 地址，发送 http 请求。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="netutil"> 15. netutil 网络包支持获取 ip 地址，发送 http 请求。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/netutil"
@@ -1229,7 +1283,7 @@ import "github.com/duke-git/lancet/v2/netutil"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#IsTelnetConnected)]
     [[play](https://go.dev/play/p/yiLCGtQv_ZG)]
 
-<h3 id="pointer"> 15. pointer 包支持一些指针类型的操作。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="pointer"> 16. pointer 包支持一些指针类型的操作。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/pointer"
@@ -1253,7 +1307,7 @@ import "github.com/duke-git/lancet/v2/pointer"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#UnwrapOrDefault)]
     [[play](https://go.dev/play/p/ZnGIHf8_o4E)]
 
-<h3 id="random"> 16. random 随机数生成器包，可以生成随机[]bytes, int, string。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="random"> 17. random 随机数生成器包，可以生成随机[]bytes, int, string。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/random"
@@ -1319,7 +1373,7 @@ import "github.com/duke-git/lancet/v2/random"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandNumberOfLength)]
     [[play](https://go.dev/play/p/oyZbuV7bu7b)]
 
-<h3 id="retry"> 17. retry 重试执行函数直到函数运行成功或被 context cancel。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="retry"> 18. retry 重试执行函数直到函数运行成功或被 context cancel。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/retry"
@@ -1353,7 +1407,7 @@ import "github.com/duke-git/lancet/v2/retry"
 
 
 
-<h3 id="slice"> 18. slice 包含操作切片的方法集合。&nbsp; &nbsp; &nbsp; &nbsp; <a href="#index">回到目录</a></h3>
+<h3 id="slice"> 19. slice 包含操作切片的方法集合。&nbsp; &nbsp; &nbsp; &nbsp; <a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/slice"
@@ -1421,6 +1475,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>EqualWith</big>** : 检查两个切片是否相等，相等条件：对两个切片的元素调用比较函数 comparator，返回 true。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#EqualWith)]
     [[play](https://go.dev/play/p/b9iygtgsHI1)]
+-   **<big>EqualUnordered</big>** : 检查两个切片是否相等，元素数量相同，值相等，不考虑元素顺序。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#EqualUnordered)]
+    [[play](todo)]
 -   **<big>Every</big>** : 如果切片中的所有值都通过谓词函数，则返回 true。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Every)]
     [[play](https://go.dev/play/p/R8U6Sl-j8cD)]
@@ -1496,6 +1553,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>Reverse</big>** : 反转切片中的元素顺序。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Reverse)]
     [[play](https://go.dev/play/p/8uI8f1lwNrQ)]
+-   **<big>ReverseCopy</big>** : 反转切片中的元素顺序, 不改变原slice。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#ReverseCopy)]
+    [[play](todo)]
 -   **<big>Reduce<sup>deprecated</sup></big>** : 将切片中的元素依次运行 iteratee 函数，返回运行结果。(废弃：建议使用 ReduceBy)
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Reduce)]
     [[play](https://go.dev/play/p/_RfXJJWIsIm)]
@@ -1520,6 +1580,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>Shuffle</big>** : 随机打乱切片中的元素顺序。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Shuffle)]
     [[play](https://go.dev/play/p/YHvhnWGU3Ge)]
+-   **<big>ShuffleCopy</big>** : 随机打乱切片中的元素顺序, 不改变原切片。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ShuffleCopy)]
+    [[play](todo)]
 -   **<big>IsAscending</big>** : 检查切片元素是否按升序排列。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IsAscending)]
     [[play](https://go.dev/play/p/9CtsFjet4SH)]
@@ -1615,7 +1678,7 @@ import "github.com/duke-git/lancet/v2/slice"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ConcatBy)]
     [[play](https://go.dev/play/p/6QcUpcY4UMW)]
 
-<h3 id="stream"> 19. stream 流，该包仅验证简单的 stream 实现，功能有限。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="stream"> 20. stream 流，该包仅验证简单的 stream 实现，功能有限。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/stream"
@@ -1711,7 +1774,7 @@ import "github.com/duke-git/lancet/v2/stream"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#LastIndexOf)]
     [[play](https://go.dev/play/p/CjeoNw2eac_G)]
 
-<h3 id="structs"> 20. structs 提供操作 struct, tag, field 的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="structs"> 21. structs 提供操作 struct, tag, field 的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/structs"
@@ -1748,7 +1811,7 @@ import "github.com/duke-git/lancet/v2/structs"
 -   **<big>IsTargetType</big>** : 判断属性是否是目标类型。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsTargetType)]
 
-<h3 id="strutil"> 21. strutil 包含字符串处理的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="strutil"> 22. strutil 包含字符串处理的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/strutil"
@@ -1897,8 +1960,12 @@ import "github.com/duke-git/lancet/v2/strutil"
 -   **<big>ExtractContent</big>** : 提取两个标记之间的内容。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#ExtractContent)]
     [[play](https://go.dev/play/p/Ay9UIk7Rum9)]
+-   **<big>FindAllOccurrences</big>** : 返回子字符串在字符串中所有出现的位置。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#FindAllOccurrences)]
+    [[play](todo)]
 
-<h3 id="system"> 22. system 包含 os, runtime, shell command 的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+
+<h3 id="system"> 23. system 包含 os, runtime, shell command 的相关函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/system"
@@ -1948,7 +2015,7 @@ import "github.com/duke-git/lancet/v2/system"
 
 
 
-<h3 id="tuple"> 23. Tuple 包实现一个元组数据类型。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="tuple"> 24. Tuple 包实现一个元组数据类型。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/tuple"
@@ -2065,7 +2132,7 @@ import "github.com/duke-git/lancet/v2/tuple"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip10)]
     [[play](https://go.dev/play/p/-taQB6Wfre_z)]
 
-<h3 id="validator"> 24. validator 验证器包，包含常用字符串格式验证函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="validator"> 25. validator 验证器包，包含常用字符串格式验证函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/validator"
@@ -2151,6 +2218,9 @@ import "github.com/duke-git/lancet/v2/validator"
 -   **<big>IsIpV6</big>** : 验证字符串是否是ipv6地址。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIpV6)]
     [[play](https://go.dev/play/p/AHA0r0AzIdC)]
+-   **<big>IsIpPort</big>** : 检查字符串是否是ip:port格式。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIpPort)]
+    [[play](todo)]
 -   **<big>IsStrongPassword</big>** : 验证字符串是否是强密码：（字母+数字+特殊字符)。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsStrongPassword)]
     [[play](https://go.dev/play/p/QHdVcSQ3uDg)]
@@ -2200,7 +2270,7 @@ import "github.com/duke-git/lancet/v2/validator"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsChinaUnionPay)]
     [[play](https://go.dev/play/p/yafpdxLiymu)]
 
-<h3 id="xerror"> 25. xerror 包实现一些错误处理函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
+<h3 id="xerror"> 26. xerror 包实现一些错误处理函数。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
 ```go
 import "github.com/duke-git/lancet/v2/xerror"

concurrency/channel.go

@@ -157,10 +157,10 @@ func (c *Channel[T]) Tee(ctx context.Context, in <-chan T) (<-chan T, <-chan T)
 // 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)
-
 	go func() {
 		defer close(valStream)
-
+		wg := sync.WaitGroup{}
+		defer wg.Wait()
 		for {
 			var stream <-chan T
 			select {
@@ -169,19 +169,22 @@ func (c *Channel[T]) Bridge(ctx context.Context, chanStream <-chan <-chan T) <-c
 					return
 				}
 				stream = maybeStream
+				wg.Add(1)
 			case <-ctx.Done():
 				return
 			}
 
-			for val := range c.OrDone(ctx, stream) {
+			go func() {
-				select {
+				defer wg.Done()
-				case valStream <- val:
+				for val := range c.OrDone(ctx, stream) {
-				case <-ctx.Done():
+					select {
+					case valStream <- val:
+					case <-ctx.Done():
+					}
 				}
-			}
+			}()
 		}
 	}()
-
 	return valStream
 }
 

concurrency/channel_example_test.go

@@ -168,7 +168,8 @@ func ExampleChannel_Tee() {
 func ExampleChannel_Bridge() {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-
+	m1 := make(map[int]int)
+	m2 := make(map[int]int)
 	c := NewChannel[int]()
 	genVals := func() <-chan <-chan int {
 		out := make(chan (<-chan int))
@@ -177,6 +178,7 @@ func ExampleChannel_Bridge() {
 			for i := 1; i <= 5; i++ {
 				stream := make(chan int, 1)
 				stream <- i
+				m1[i]++
 				close(stream)
 				out <- stream
 			}
@@ -185,12 +187,15 @@ func ExampleChannel_Bridge() {
 	}
 
 	for v := range c.Bridge(ctx, genVals()) {
-		fmt.Println(v)
+		m2[v]++
+	}
+	for k, v := range m1 {
+		fmt.Println(m2[k] == v)
 	}
 	// Output:
-	// 1
+	// true
-	// 2
+	// true
-	// 3
+	// true
-	// 4
+	// true
-	// 5
+	// true
 }

concurrency/channel_test.go

@@ -169,7 +169,8 @@ func TestTee(t *testing.T) {
 func TestBridge(t *testing.T) {
 	t.Parallel()
 	assert := internal.NewAssert(t, "TestBridge")
-
+	m1 := make(map[int]int)
+	m2 := make(map[int]int)
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
@@ -181,6 +182,7 @@ func TestBridge(t *testing.T) {
 			for i := 0; i < 10; i++ {
 				stream := make(chan int, 1)
 				stream <- i
+				m1[i]++
 				close(stream)
 				chanStream <- stream
 			}
@@ -188,9 +190,11 @@ func TestBridge(t *testing.T) {
 		return chanStream
 	}
 
-	index := 0
 	for val := range c.Bridge(ctx, genVals()) {
-		assert.Equal(index, val)
+		m2[val]++
-		index++
+	}
+
+	for k, v := range m1 {
+		assert.Equal(m2[k], v)
 	}
 }

convertor/convertor.go

@@ -108,6 +108,13 @@ func ToString(value any) string {
 	if value == nil {
 		return ""
 	}
+	rv := reflect.ValueOf(value)
+	if rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			return ""
+		}
+		return ToString(rv.Elem().Interface())
+	}
 
 	switch val := value.(type) {
 	case float32:

convertor/convertor_test.go

@@ -142,13 +142,24 @@ func TestToString(t *testing.T) {
 	}
 	aStruct := TestStruct{Name: "TestStruct"}
 
+	i32Val := int32(123)
+	i64Val := int64(123)
+	iZeroVal := 0
+	fVal := 12.3
+	sVal := "abc"
+	var iNilPointer *int
+	var sNilPointer *string
+
 	cases := []any{
 		"", nil,
 		int(0), int8(1), int16(-1), int32(123), int64(123),
 		uint(123), uint8(123), uint16(123), uint32(123), uint64(123),
 		float64(12.3), float32(12.3),
 		true, false,
-		[]int{1, 2, 3}, aMap, aStruct, []byte{104, 101, 108, 108, 111}}
+		[]int{1, 2, 3}, aMap, aStruct, []byte{104, 101, 108, 108, 111},
+		&i32Val, &i64Val, &fVal, &sVal, &aStruct, iNilPointer, sNilPointer,
+		&iZeroVal,
+	}
 
 	expected := []string{
 		"", "",
@@ -157,6 +168,8 @@ func TestToString(t *testing.T) {
 		"12.3", "12.3",
 		"true", "false",
 		"[1,2,3]", "{\"a\":1,\"b\":2,\"c\":3}", "{\"Name\":\"TestStruct\"}", "hello",
+		"123", "123", "12.3", "abc", "{\"Name\":\"TestStruct\"}", "", "",
+		"0",
 	}
 
 	for i := 0; i < len(cases); i++ {

cryptor/rsa_private_example.pem

@@ -1,51 +1,51 @@
 -----BEGIN rsa private key-----
-MIIJKQIBAAKCAgEAuYcMNNn4v0OaL/Ufwj0pkChajjUm1Nb3OeU4bXX26i+khkXN
+MIIJKAIBAAKCAgEA0HaqqGWnNqwRVKoJUUjYiH/dwkSK61La4RGYkvDfcuo9pDgc
-y6KaoRzlAfsH1Fli4iv7x6c9cde4Q63R7WodvzcH1W2HKxQ3Ht6hkeS2RKgJEm8o
+zHVhFUb/MYWeb3bAlFAGcZLYSBh6WAGxbeMjSkaLroaXnafhKZ2oXXUy8CzyYxZw
-/Pbzr10yaULwjVLXsTkG6ssIdQLw3zwz6XRDvyU66NbE3mNDIh1yAtJUmPoeRcA4
+pLCDgJLG7Pf0jer3STZW93ZT8UJixbKwbqD6b8fkpMANwCYrTlXDWBuZVaEKuQNn
-QMbMM+5P888Ht6ETsLVkMx1uFYALbGidlACBS7hyBtc0ibWjdAG9rSZg7E3MAhz5
+C4XufQis4fwRxRgfrZuLMvuQVtnyYmssmnp8JHovYkr87giDjEgvlrC84Lez32Zh
-dRYmkGAJqSA4aHWL6FT2gXXkrP36D4+hbQA6UsBLxs5nM4Cl7fzdysJWv1suldiB
+EhORRu5NGEDeZ1OewbkXGyQtbcBQYNAxgnOcO44MTTPhEdz4/A0xwzEe+yIOxWIA
-84+gYRmiumsj/odwVcxxFcxI1sDgabzI5IKTwaGLLz5hu+7in9lAIEqtfH/Ui5pf
+WuEM2rclXpZBW/MEK41gZ3C04KcX5R0KRdj2PTTH7vJ33yRC4hKtWetwMvsUrewr
-Ew8qH1ymkLnlkSAtTZ4ByMaw869zP0AYnn1mp+dJ5Mo1mqy0+qZn2E4FITrAOgr3
+RKVcUgaeFykDAlgIDoSWvG0nzb70AWSoNcj7krLlwEc2WLGy/kCYWppnfYKafEJX
-06D/7Ce1ZE+UZ2/i7hpkcdAD1PdY1c+FfmpsosZ/WVcvHUH65Fz1TR6YMz0poeBj
+pgblHrDFKlWvte68yrvGdCsWRLQ2uUF0xokQIg4u2bApyWNroxEtjHwUp1VeJuZB
-27+CBziA6P1MKfBNpBx+UfHomK5O2356S90zqd5z0W6t1rkgLSPcR592yszAM72h
+Qkfg+vIW+t3moQpMtlhy4aai/oGIxI5TIB82nv8TPVczjHmmE3hwL6nZ5OfbFyWp
-+KHUtGB/rs6OUum4yfw3EVA4R4plO1lU50scUgwducOB7ihYSQPU87IPHcydWQ5N
+RFvKLtXcaAKMi2HqOLRkQhqjjJUCO9Wyhu1BkX8RAeKLl3S7gRyhuOB5JNUGEpQ3
-LobygxzqNYpIb0pPrLTBP1ZM9v6wY16xs6kCknmr3e7aQckxq17MuNIkewsCAwEA
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+AQKCAgBASCdt0BLVABBEDD7dStpClTNbwWkZEa6e8p8ayJ4OwH6LkiYHQjbSqdbt
-pTlGsKdjSoZS6gwJcNQ/9QYDL9Iy+yY8/JRU9pQoYtrMEF7QJAHCb231NvaakMt6
+fWeStYrC8T5bbU22RZ4MX1FIMl9iewh9o9FC806yV4RgdVBk0WdY+MV5c1jJn/kp
-zdR6eK+Ajevz4KG8YT+37VIQbOgr74KERwJFghNpasF6/VN6NESaP/AWwB1/MT/9
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-TRAc7yz8QVIECbMM8NTpn1+fBr+cFsI+0IS9PdMPafBmRDrBU4GMieWGDmshYPd8
+NCSCo2K5VRqCeSJUNdbRVH0nkZeQZAESjU8bU5LFAklybUOBBAS6YcaTHWeR+M/b
-hOu58UVCNoaVwvC6BpRGMmOh7eMV+xFhQlIWVRFZxrb2NzThtOoS6ohS4aq7dimE
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-19+RZttogXZmdDApNZDFl6OXF6NSbZRyZCHYQXv3Drdc09Rw8G8tN+E/5Lv0mc+n
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-mQ+Q95J46yC98szMnewvTRplJx/fL2zrZ+wus8RIA8PA7AZXNAs6DyWOZZEUB8JF
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-+rKfeux7FcAySmdayx6rptKcqcya52zp3r2N37z4SREtyoKZFhtySykcEONZ+mIy
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-Llbkey1gAmhGK0/xTAs8FJ3+xjIaMEwvrEUSVOCEE3Euf/albmdvVAoBVzkzP9bI
+xnhnEdr/FQcFQhzuQ6gU196SBi8Bqjz1t0cNozNu3wvp8Fu0G8Rr9gjYnH8m5xXz
-EYL4u3ck5oVh7AMqKRjlgqM8NmqPL+V2Ftje8SJcP23SqRyemg+f0wem+HoY/sjq
+xb9xevR7X/swfxd+/KUqoenYdU5ZFJpDRCmUMDKWR/3Q7s4SRxMN0+c/uBSaih3J
-PAZOoEuB4ibCKBBZ1jPq2kfEaNSOv/Qj1qTiuQwHMEhUlwzzEQKCAQEA4uwCxxXr
+I9I8urHG6mFW2qWQZTvuostmb7vVHaefx0RZOhX0efJVMZPwiQKCAQEA8BUXRw9k
-NWD3sSNzXX531huZDxBL9TfWxaH0FNthnee5mukAdmPkMj0JT5yFMrTQMWBM31AI
+Ms3tqmBMVM4sMcPgsffJxjAJUdunUgEpaBAqrDQmZ6uBjAYq7iTzLgJJuLI1o1sv
-PBIFI3toC56FZWdS92jqsNaSS41r/lt1b0XDwFlNcYf9QO7Uyw9QNROTDwHXeoHb
+HtEWuGLHRRJpdoEamGweJE/o28OH2MBiiL2ezfRIHsg8RRr6os6KvlKevty6m7d9
-scC34UfsSShSYC46+ZWzwPdRL8X2jccf2ZLFoVCHpNIpSHEmyAELUi8ANDCphE9a
+hAvpS6XvZGK2eCSooL6zZ8XTgnDw+Hw8Q4i+dazjb5dDRRL97eHHUqzcYH5vIsAE
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-i0jQ2JdMuZDl8etk8F4Jxa0wmPr1EMyL1Hv1l3zHbNBwHK1C77xLZILFTLJ/2uSc
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-HtjvS1KDNQYKn9IrQdDg1wV59kluiRv34+E6cVgWDnfcoePXu0gHbMuGFwtzHPs+
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-dXWH4NPac0bQipW2HpgxS6/1Caq+TT5EJqkDp1Zsd/HwsMmdUsCcq0Vob/G52Ypz
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-VUACyMXAAaBOhPxlk7/7dmmTZx/RcZrmOVibdDAwePJP/ob+baaBjToXkdSi
+qdCFyy2x70wSh6Rfzb7WEWl15I4yfBTddXkJX82S+MrZu/Xq4FDtng594h0=
 -----END rsa private key-----

cryptor/rsa_public_example.pem

@@ -1,14 +1,14 @@
 -----BEGIN rsa public key-----
-MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuYcMNNn4v0OaL/Ufwj0p
+MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0HaqqGWnNqwRVKoJUUjY
-kChajjUm1Nb3OeU4bXX26i+khkXNy6KaoRzlAfsH1Fli4iv7x6c9cde4Q63R7Wod
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-vzcH1W2HKxQ3Ht6hkeS2RKgJEm8o/Pbzr10yaULwjVLXsTkG6ssIdQLw3zwz6XRD
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-vyU66NbE3mNDIh1yAtJUmPoeRcA4QMbMM+5P888Ht6ETsLVkMx1uFYALbGidlACB
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-S7hyBtc0ibWjdAG9rSZg7E3MAhz5dRYmkGAJqSA4aHWL6FT2gXXkrP36D4+hbQA6
+JHovYkr87giDjEgvlrC84Lez32ZhEhORRu5NGEDeZ1OewbkXGyQtbcBQYNAxgnOc
-UsBLxs5nM4Cl7fzdysJWv1suldiB84+gYRmiumsj/odwVcxxFcxI1sDgabzI5IKT
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+Ig4u2bApyWNroxEtjHwUp1VeJuZBQkfg+vIW+t3moQpMtlhy4aai/oGIxI5TIB82
-qd5z0W6t1rkgLSPcR592yszAM72h+KHUtGB/rs6OUum4yfw3EVA4R4plO1lU50sc
+nv8TPVczjHmmE3hwL6nZ5OfbFyWpRFvKLtXcaAKMi2HqOLRkQhqjjJUCO9Wyhu1B
-UgwducOB7ihYSQPU87IPHcydWQ5NLobygxzqNYpIb0pPrLTBP1ZM9v6wY16xs6kC
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-knmr3e7aQckxq17MuNIkewsCAwEAAQ==
+wxbuF5+Ci2SYgSHv/3zXKoMCAwEAAQ==
 -----END rsa public key-----

datetime/datetime.go

@@ -64,28 +64,95 @@ func init() {
 	}
 }
 
-// AddMinute add or sub minute to the time.
+// AddMinute add or sub minutes to the time.
 // Play: https://go.dev/play/p/nT1heB1KUUK
-func AddMinute(t time.Time, minute int64) time.Time {
+func AddMinute(t time.Time, minutes int64) time.Time {
-	return t.Add(time.Minute * time.Duration(minute))
+	return t.Add(time.Minute * time.Duration(minutes))
 }
 
-// AddHour add or sub hour to the time.
+// AddHour add or sub hours to the time.
 // Play: https://go.dev/play/p/rcMjd7OCsi5
-func AddHour(t time.Time, hour int64) time.Time {
+func AddHour(t time.Time, hours int64) time.Time {
-	return t.Add(time.Hour * time.Duration(hour))
+	return t.Add(time.Hour * time.Duration(hours))
 }
 
-// AddDay add or sub day to the time.
+// AddDay add or sub days to the time.
 // Play: https://go.dev/play/p/dIGbs_uTdFa
-func AddDay(t time.Time, day int64) time.Time {
+func AddDay(t time.Time, days int64) time.Time {
-	return t.Add(24 * time.Hour * time.Duration(day))
+	return t.Add(24 * time.Hour * time.Duration(days))
+}
+
+// AddWeek add or sub weeks to the time.
+// play: todo
+func AddWeek(t time.Time, weeks int64) time.Time {
+	return t.Add(7 * 24 * time.Hour * time.Duration(weeks))
+}
+
+// AddMonth add or sub months to the time.
+// Play: todo
+func AddMonth(t time.Time, months int64) time.Time {
+	return t.AddDate(0, int(months), 0)
 }
 
 // AddYear add or sub year to the time.
 // Play: https://go.dev/play/p/MqW2ujnBx10
 func AddYear(t time.Time, year int64) time.Time {
-	return t.Add(365 * 24 * time.Hour * time.Duration(year))
+	return t.AddDate(int(year), 0, 0)
+}
+
+// AddDaySafe add or sub days to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+// Play: todo
+func AddDaySafe(t time.Time, days int) time.Time {
+	t = t.AddDate(0, 0, days)
+	year, month, day := t.Date()
+
+	lastDayOfMonth := time.Date(year, month+1, 0, 0, 0, 0, 0, t.Location()).Day()
+
+	if day > lastDayOfMonth {
+		t = time.Date(year, month, lastDayOfMonth, t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), t.Location())
+	}
+
+	return t
+}
+
+// AddMonthSafe add or sub months to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+// Play: todo
+func AddMonthSafe(t time.Time, months int) time.Time {
+	year := t.Year()
+	month := int(t.Month()) + months
+
+	for month > 12 {
+		month -= 12
+		year++
+	}
+	for month < 1 {
+		month += 12
+		year--
+	}
+
+	daysInMonth := time.Date(year, time.Month(month+1), 0, 0, 0, 0, 0, time.UTC).Day()
+
+	day := t.Day()
+	if day > daysInMonth {
+		day = daysInMonth
+	}
+
+	return time.Date(year, time.Month(month), day, t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), t.Location())
+}
+
+// AddYearSafe add or sub years to the time and ensure that the returned date does not exceed the valid date of the target year and month.
+// Play: todo
+func AddYearSafe(t time.Time, years int) time.Time {
+	year, month, day := t.Date()
+	year += years
+
+	if month == time.February && day == 29 {
+		if !IsLeapYear(year) {
+			day = 28
+		}
+	}
+
+	return time.Date(year, month, day, t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), t.Location())
 }
 
 // GetNowDate return format yyyy-mm-dd of current date.

datetime/datetime_example_test.go

@@ -7,71 +7,141 @@ import (
 )
 
 func ExampleAddDay() {
-	now := time.Now()
+	date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-	tomorrow := AddDay(now, 1)
+	after1Day := AddDay(date, 1)
-	diff1 := tomorrow.Sub(now)
+	before1Day := AddDay(date, -1)
 
-	yesterday := AddDay(now, -1)
+	fmt.Println(after1Day.Format("2006-01-02 15:04:05"))
-	diff2 := yesterday.Sub(now)
+	fmt.Println(before1Day.Format("2006-01-02 15:04:05"))
-
-	fmt.Println(diff1)
-	fmt.Println(diff2)
 
 	// Output:
-	// 24h0m0s
+	// 2021-01-02 00:00:00
-	// -24h0m0s
+	// 2020-12-31 00:00:00
+}
+
+func ExampleAddWeek() {
+	date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+	after2Weeks := AddWeek(date, 2)
+	before2Weeks := AddWeek(date, -2)
+
+	fmt.Println(after2Weeks.Format("2006-01-02"))
+	fmt.Println(before2Weeks.Format("2006-01-02"))
+
+	// Output:
+	// 2021-01-15
+	// 2020-12-18
+}
+
+func ExampleAddMonth() {
+	date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+	after2Months := AddMonth(date, 2)
+	before2Months := AddMonth(date, -2)
+
+	fmt.Println(after2Months.Format("2006-01-02"))
+	fmt.Println(before2Months.Format("2006-01-02"))
+
+	// Output:
+	// 2021-03-01
+	// 2020-11-01
 }
 
 func ExampleAddHour() {
-	now := time.Now()
+	date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-	after2Hours := AddHour(now, 2)
+	after2Hours := AddHour(date, 2)
-	diff1 := after2Hours.Sub(now)
+	before2Hours := AddHour(date, -2)
 
-	before2Hours := AddHour(now, -2)
+	fmt.Println(after2Hours.Format("2006-01-02 15:04:05"))
-	diff2 := before2Hours.Sub(now)
+	fmt.Println(before2Hours.Format("2006-01-02 15:04:05"))
-
-	fmt.Println(diff1)
-	fmt.Println(diff2)
 
 	// Output:
-	// 2h0m0s
+	// 2021-01-01 02:00:00
-	// -2h0m0s
+	// 2020-12-31 22:00:00
 }
 
 func ExampleAddMinute() {
-	now := time.Now()
+	date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-	after2Minutes := AddMinute(now, 2)
+	after2Minutes := AddMinute(date, 2)
-	diff1 := after2Minutes.Sub(now)
+	before2Minutes := AddMinute(date, -2)
 
-	before2Minutes := AddMinute(now, -2)
+	fmt.Println(after2Minutes.Format("2006-01-02 15:04:05"))
-	diff2 := before2Minutes.Sub(now)
+	fmt.Println(before2Minutes.Format("2006-01-02 15:04:05"))
-
-	fmt.Println(diff1)
-	fmt.Println(diff2)
 
 	// Output:
-	// 2m0s
+	// 2021-01-01 00:02:00
-	// -2m0s
+	// 2020-12-31 23:58:00
 }
 
 func ExampleAddYear() {
-	now := time.Now()
+	date, _ := time.Parse("2006-01-02", "2021-01-01")
 
-	after1Year := AddYear(now, 1)
+	after2Years := AddYear(date, 2)
-	diff1 := after1Year.Sub(now)
+	before2Years := AddYear(date, -2)
 
-	before1Year := AddYear(now, -1)
+	fmt.Println(after2Years.Format("2006-01-02"))
-	diff2 := before1Year.Sub(now)
+	fmt.Println(before2Years.Format("2006-01-02"))
-
-	fmt.Println(diff1)
-	fmt.Println(diff2)
 
 	// Output:
-	// 8760h0m0s
+	// 2023-01-01
-	// -8760h0m0s
+	// 2019-01-01
+}
+
+func ExampleAddDaySafe() {
+	leapYearDate1, _ := time.Parse("2006-01-02", "2024-02-29")
+	result1 := AddDaySafe(leapYearDate1, 1)
+
+	leapYearDate2, _ := time.Parse("2006-01-02", "2024-03-01")
+	result2 := AddDaySafe(leapYearDate2, -1)
+
+	nonLeapYearDate1, _ := time.Parse("2006-01-02", "2025-02-28")
+	result3 := AddDaySafe(nonLeapYearDate1, 1)
+
+	nonLeaYearDate2, _ := time.Parse("2006-01-02", "2025-03-01")
+	result4 := AddDaySafe(nonLeaYearDate2, -1)
+
+	fmt.Println(result1.Format("2006-01-02"))
+	fmt.Println(result2.Format("2006-01-02"))
+	fmt.Println(result3.Format("2006-01-02"))
+	fmt.Println(result4.Format("2006-01-02"))
+
+	// Output:
+	// 2024-03-01
+	// 2024-02-29
+	// 2025-03-01
+	// 2025-02-28
+}
+
+func ExampleAddMonthSafe() {
+	date1, _ := time.Parse("2006-01-02", "2025-01-31")
+	result1 := AddMonthSafe(date1, 1)
+
+	date2, _ := time.Parse("2006-01-02", "2024-02-29")
+	result2 := AddMonthSafe(date2, -1)
+
+	fmt.Println(result1.Format("2006-01-02"))
+	fmt.Println(result2.Format("2006-01-02"))
+
+	// Output:
+	// 2025-02-28
+	// 2024-01-29
+}
+
+func ExampleAddYearSafe() {
+	date, _ := time.Parse("2006-01-02", "2020-02-29")
+
+	result1 := AddYearSafe(date, 1)
+	result2 := AddYearSafe(date, -1)
+
+	fmt.Println(result1.Format("2006-01-02"))
+	fmt.Println(result2.Format("2006-01-02"))
+
+	// Output:
+	// 2021-02-28
+	// 2019-02-28
 }
 
 func ExampleGetNowDate() {

datetime/datetime_test.go

@@ -9,78 +9,427 @@ import (
 
 func TestAddYear(t *testing.T) {
 	t.Parallel()
-
 	assert := internal.NewAssert(t, "TestAddDay")
 
-	now := time.Now()
+	tests := []struct {
-	after2Years := AddYear(now, 1)
+		inputDate string
-	diff1 := after2Years.Sub(now)
+		years     int
-	assert.Equal(float64(8760), diff1.Hours())
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     1,
+			expected:  "2022-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     -1,
+			expected:  "2020-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     0,
+			expected:  "2021-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     2,
+			expected:  "2023-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     3,
+			expected:  "2024-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			years:     4,
+			expected:  "2025-01-01 00:00:00",
+		},
+	}
 
-	before2Years := AddYear(now, -1)
+	for _, tt := range tests {
-	diff2 := before2Years.Sub(now)
+		date, _ := time.Parse("2006-01-02 15:04:05", tt.inputDate)
-	assert.Equal(float64(-8760), diff2.Hours())
+		result := AddYear(date, int64(tt.years))
-}
+		assert.Equal(tt.expected, result.Format("2006-01-02 15:04:05"))
-
+	}
-func TestBetweenSeconds(t *testing.T) {
-	t.Parallel()
-
-	assert := internal.NewAssert(t, "TestBetweenSeconds")
-
-	today := time.Now()
-	tomorrow := AddDay(today, 1)
-	yesterday := AddDay(today, -1)
-
-	result1 := BetweenSeconds(today, tomorrow)
-	result2 := BetweenSeconds(today, yesterday)
-
-	assert.Equal(int64(86400), result1)
-	assert.Equal(int64(-86400), result2)
 }
 
 func TestAddDay(t *testing.T) {
 	t.Parallel()
-
 	assert := internal.NewAssert(t, "TestAddDay")
 
-	now := time.Now()
+	tests := []struct {
-	after2Days := AddDay(now, 2)
+		inputDate string
-	diff1 := after2Days.Sub(now)
+		days      int
-	assert.Equal(float64(48), diff1.Hours())
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      1,
+			expected:  "2021-01-02 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      -1,
+			expected:  "2020-12-31 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      0,
+			expected:  "2021-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      2,
+			expected:  "2021-01-03 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      3,
+			expected:  "2021-01-04 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			days:      4,
+			expected:  "2021-01-05 00:00:00",
+		},
+	}
 
-	before2Days := AddDay(now, -2)
+	for _, tt := range tests {
-	diff2 := before2Days.Sub(now)
+		date, _ := time.Parse("2006-01-02 15:04:05", tt.inputDate)
-	assert.Equal(float64(-48), diff2.Hours())
+		result := AddDay(date, int64(tt.days))
+		assert.Equal(tt.expected, result.Format("2006-01-02 15:04:05"))
+	}
 }
 
 func TestAddHour(t *testing.T) {
 	t.Parallel()
-
 	assert := internal.NewAssert(t, "TestAddHour")
 
-	now := time.Now()
+	tests := []struct {
-	after2Hours := AddHour(now, 2)
+		inputDate string
-	diff1 := after2Hours.Sub(now)
+		hours     int
-	assert.Equal(float64(2), diff1.Hours())
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     1,
+			expected:  "2021-01-01 01:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     -1,
+			expected:  "2020-12-31 23:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     0,
+			expected:  "2021-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     24,
+			expected:  "2021-01-02 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     25,
+			expected:  "2021-01-02 01:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     48,
+			expected:  "2021-01-03 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			hours:     49,
+			expected:  "2021-01-03 01:00:00",
+		},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02 15:04:05", tt.inputDate)
+		result := AddHour(date, int64(tt.hours))
+		assert.Equal(tt.expected, result.Format("2006-01-02 15:04:05"))
+	}
 
-	before2Hours := AddHour(now, -2)
-	diff2 := before2Hours.Sub(now)
-	assert.Equal(float64(-2), diff2.Hours())
 }
 
 func TestAddMinute(t *testing.T) {
 	t.Parallel()
-
 	assert := internal.NewAssert(t, "TestAddMinute")
 
-	now := time.Now()
+	tests := []struct {
-	after2Minutes := AddMinute(now, 2)
+		inputDate string
-	diff1 := after2Minutes.Sub(now)
+		minutes   int
-	assert.Equal(float64(2), diff1.Minutes())
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   1,
+			expected:  "2021-01-01 00:01:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   -1,
+			expected:  "2020-12-31 23:59:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   0,
+			expected:  "2021-01-01 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   60,
+			expected:  "2021-01-01 01:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   61,
+			expected:  "2021-01-01 01:01:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   1440,
+			expected:  "2021-01-02 00:00:00",
+		},
+		{
+			inputDate: "2021-01-01 00:00:00",
+			minutes:   1441,
+			expected:  "2021-01-02 00:01:00",
+		},
+	}
 
-	before2Minutes := AddMinute(now, -2)
+	for _, tt := range tests {
-	diff2 := before2Minutes.Sub(now)
+		date, _ := time.Parse("2006-01-02 15:04:05", tt.inputDate)
-	assert.Equal(float64(-2), diff2.Minutes())
+		result := AddMinute(date, int64(tt.minutes))
+		assert.Equal(tt.expected, result.Format("2006-01-02 15:04:05"))
+	}
+}
+
+func TestAddWeek(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddWeek")
+
+	tests := []struct {
+		inputDate string
+		weeks     int
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01",
+			weeks:     1,
+			expected:  "2021-01-08",
+		},
+		{
+			inputDate: "2021-01-01",
+			weeks:     -1,
+			expected:  "2020-12-25",
+		},
+		{
+			inputDate: "2021-01-01",
+			weeks:     0,
+			expected:  "2021-01-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			weeks:     52,
+			expected:  "2021-12-31",
+		},
+		{
+			inputDate: "2021-01-01",
+			weeks:     53,
+			expected:  "2022-01-07",
+		},
+		{
+			inputDate: "2021-01-01",
+			weeks:     104,
+			expected:  "2022-12-30",
+		},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02", tt.inputDate)
+		result := AddWeek(date, int64(tt.weeks))
+		assert.Equal(tt.expected, result.Format("2006-01-02"))
+	}
+}
+
+func TestAddMonth(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddMonth")
+
+	tests := []struct {
+		inputDate string
+		months    int
+		expected  string
+	}{
+		{
+			inputDate: "2021-01-01",
+			months:    1,
+			expected:  "2021-02-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			months:    -1,
+			expected:  "2020-12-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			months:    0,
+			expected:  "2021-01-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			months:    12,
+			expected:  "2022-01-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			months:    13,
+			expected:  "2022-02-01",
+		},
+		{
+			inputDate: "2021-01-01",
+			months:    24,
+			expected:  "2023-01-01",
+		},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02", tt.inputDate)
+		result := AddMonth(date, int64(tt.months))
+		assert.Equal(tt.expected, result.Format("2006-01-02"))
+	}
+
+}
+
+func TestAddDaySafe(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddDaySafe")
+
+	tests := []struct {
+		inputDate string
+		days      int
+		expected  string
+	}{
+		{"2025-01-31", 10, "2025-02-10"},
+		{"2025-01-01", 30, "2025-01-31"},
+		{"2025-01-31", 1, "2025-02-01"},
+		{"2025-02-28", 1, "2025-03-01"},
+		{"2024-02-29", 1, "2024-03-01"},
+		{"2024-02-29", 365, "2025-02-28"},
+
+		{"2025-01-31", -10, "2025-01-21"},
+		{"2025-01-01", -30, "2024-12-02"},
+		{"2025-02-01", -1, "2025-01-31"},
+		{"2025-03-01", -1, "2025-02-28"},
+		{"2024-03-01", -1, "2024-02-29"},
+
+		{"2025-01-31", -31, "2024-12-31"},
+		{"2025-12-31", 1, "2026-01-01"},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02", tt.inputDate)
+		result := AddDaySafe(date, tt.days)
+		assert.Equal(tt.expected, result.Format("2006-01-02"))
+	}
+}
+
+func TestAddMonthSafe(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddMonthSafe")
+
+	tests := []struct {
+		inputDate string
+		months    int
+		expected  string
+	}{
+		{
+			inputDate: "2025-01-31",
+			months:    1,
+			expected:  "2025-02-28",
+		},
+		{
+			inputDate: "2025-01-31",
+			months:    -1,
+			expected:  "2024-12-31",
+		},
+		{
+			inputDate: "2025-12-31",
+			months:    1,
+			expected:  "2026-01-31",
+		},
+		{
+			inputDate: "2025-01-31",
+			months:    -1,
+			expected:  "2024-12-31",
+		},
+		{
+			inputDate: "2024-02-29",
+			months:    1,
+			expected:  "2024-03-29",
+		},
+		{
+			inputDate: "2024-02-29",
+			months:    -1,
+			expected:  "2024-01-29",
+		},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02", tt.inputDate)
+		result := AddMonthSafe(date, tt.months)
+		assert.Equal(tt.expected, result.Format("2006-01-02"))
+	}
+
+}
+
+func TestAddYearSafe(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddYearSafe")
+
+	tests := []struct {
+		inputDate string
+		years     int
+		expected  string
+	}{
+		{
+			inputDate: "2020-02-29",
+			years:     1,
+			expected:  "2021-02-28",
+		},
+		{
+			inputDate: "2020-02-29",
+			years:     2,
+			expected:  "2022-02-28",
+		},
+		{
+			inputDate: "2020-02-29",
+			years:     -1,
+			expected:  "2019-02-28",
+		},
+		{
+			inputDate: "2020-02-29",
+			years:     -2,
+			expected:  "2018-02-28",
+		},
+	}
+
+	for _, tt := range tests {
+		date, _ := time.Parse("2006-01-02", tt.inputDate)
+		result := AddYearSafe(date, tt.years)
+		assert.Equal(tt.expected, result.Format("2006-01-02"))
+	}
 }
 
 func TestGetNowDate(t *testing.T) {
@@ -578,3 +927,19 @@ func TestMaxMin(t *testing.T) {
 	assert.Equal(oneMinuteAgo, min)
 	assert.Equal(oneMinuteAfter, max)
 }
+
+func TestBetweenSeconds(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestBetweenSeconds")
+
+	today := time.Now()
+	tomorrow := AddDay(today, 1)
+	yesterday := AddDay(today, -1)
+
+	result1 := BetweenSeconds(today, tomorrow)
+	result2 := BetweenSeconds(today, yesterday)
+
+	assert.Equal(int64(86400), result1)
+	assert.Equal(int64(-86400), result2)
+}

docs/api/packages/datetime.md

@@ -23,9 +23,14 @@ import (
 ## 目录
 
 -   [AddDay](#AddDay)
+-   [AddWeek](#AddWeek)
+-   [AddMonth](#AddMonth)
 -   [AddHour](#AddHour)
 -   [AddMinute](#AddMinute)
 -   [AddYear](#AddYear)
+-   [AddDaySafe](#AddDaySafe)
+-   [AddMonthSafe](#AddMonthSafe)
+-   [AddYearSafe](#AddYearSafe)
 -   [BeginOfMinute](#BeginOfMinute)
 -   [BeginOfHour](#BeginOfHour)
 -   [BeginOfDay](#BeginOfDay)
@@ -109,7 +114,7 @@ import (
 <b>函数签名:</b>
 
 ```go
-func AddDay(t time.Time, day int64) time.Time
+func AddDay(t time.Time, days int64) time.Time
 ```
 
 <b>示例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/dIGbs_uTdFa)</span></b>
@@ -124,20 +129,89 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    tomorrow := datetime.AddDay(now, 1)
+    after1Day := datetime.AddDay(date, 1)
-    diff1 := tomorrow.Sub(now)
+    before1Day := datetime.AddDay(date, -1)
 
-    yesterday := datetime.AddDay(now, -1)
+    fmt.Println(after1Day.Format("2006-01-02 15:04:05"))
-    diff2 := yesterday.Sub(now)
+    fmt.Println(before1Day.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 24h0m0s
+    // 2021-01-02 00:00:00
-    // -24h0m0s
+    // 2020-12-31 00:00:00
+}
+```
+
+### <span id="AddWeek">AddWeek</span>
+
+<p>将日期加/减星期数。</p>
+
+<b>函数签名:</b>
+
+```go
+func AddWeek(t time.Time, weeks int64) time.Time
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+    after2Weeks := datetime.AddWeek(date, 2)
+    before2Weeks := datetime.AddWeek(date, -2)
+
+    fmt.Println(after2Weeks.Format("2006-01-02"))
+    fmt.Println(before2Weeks.Format("2006-01-02"))
+
+    // Output:
+    // 2021-01-15
+    // 2020-12-18
+}
+```
+
+### <span id="AddMonth">AddMonth</span>
+
+<p>将日期加/减月数。</p>
+
+<b>函数签名:</b>
+
+```go
+func AddMonth(t time.Time, months int64) time.Time
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+    after2Months := datetime.AddMonth(date, 2)
+    before2Months := datetime.AddMonth(date, -2)
+
+    fmt.Println(after2Months.Format("2006-01-02"))
+    fmt.Println(before2Months.Format("2006-01-02"))
+
+    // Output:
+    // 2021-03-01
+    // 2020-11-01
 }
 ```
 
@@ -148,7 +222,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func AddHour(t time.Time, hour int64) time.Time
+func AddHour(t time.Time, hours int64) time.Time
 ```
 
 <b>示例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/rcMjd7OCsi5)</span></b>
@@ -163,20 +237,17 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    after2Hours := datetime.AddHour(now, 2)
+    after2Hours := datetime.AddHour(date, 2)
-    diff1 := after2Hours.Sub(now)
+    before2Hours := datetime.AddHour(date, -2)
 
-    before2Hours := datetime.AddHour(now, -2)
+    fmt.Println(after2Hours.Format("2006-01-02 15:04:05"))
-    diff2 := before2Hours.Sub(now)
+    fmt.Println(before2Hours.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 2h0m0s
+    // 2021-01-01 02:00:00
-    // -2h0m0s
+    // 2020-12-31 22:00:00
 }
 ```
 
@@ -187,7 +258,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func AddMinute(t time.Time, minute int64) time.Time
+func AddMinute(t time.Time, minutes int64) time.Time
 ```
 
 <b>示例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/nT1heB1KUUK)</span></b>
@@ -202,20 +273,17 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    after2Minutes := datetime.AddMinute(now, 2)
+    after2Minutes := datetime.AddMinute(date, 2)
-    diff1 := after2Minutes.Sub(now)
+    before2Minutes := datetime.AddMinute(date, -2)
 
-    before2Minutes := datetime.AddMinute(now, -2)
+    fmt.Println(after2Minutes.Format("2006-01-02 15:04:05"))
-    diff2 := before2Minutes.Sub(now)
+    fmt.Println(before2Minutes.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 2m0s
+    // 2021-01-01 00:02:00
-    // -2m0s
+    // 2020-12-31 23:58:00
 }
 ```
 
@@ -226,7 +294,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func AddYear(t time.Time, year int64) time.Time
+func AddYear(t time.Time, years int64) time.Time
 ```
 
 <b>示例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/MqW2ujnBx10)</span></b>
@@ -241,20 +309,137 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
 
-    after1Year := datetime.AddYear(now, 1)
+    after2Years := AddYear(date, 2)
-    diff1 := after1Year.Sub(now)
+    before2Years := AddYear(date, -2)
 
-    before1Year := datetime.AddYear(now, -1)
+    fmt.Println(after2Years.Format("2006-01-02"))
-    diff2 := before1Year.Sub(now)
+    fmt.Println(before2Years.Format("2006-01-02"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 8760h0m0s
+    // 2023-01-01
-    // -8760h0m0s
+    // 2019-01-01
+}
+```
+
+### <span id="AddDaySafe">AddDaySafe</span>
+
+<p>增加/减少指定的天数，并确保日期是有效日期。</p>
+
+<b>函数签名:</b>
+
+```go
+func AddDaySafe(t time.Time, days int) time.Time
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    leapYearDate1, _ := time.Parse("2006-01-02", "2024-02-29")
+    result1 := datetime.AddDaySafe(leapYearDate1, 1)
+
+    leapYearDate2, _ := time.Parse("2006-01-02", "2024-03-01")
+    result2 := datetime.AddDaySafe(leapYearDate2, -1)
+
+    nonLeapYearDate1, _ := time.Parse("2006-01-02", "2025-02-28")
+    result3 := datetime.AddDaySafe(nonLeapYearDate1, 1)
+
+    nonLeaYearDate2, _ := time.Parse("2006-01-02", "2025-03-01")
+    result4 := datetime.AddDaySafe(nonLeaYearDate2, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+    fmt.Println(result3.Format("2006-01-02"))
+    fmt.Println(result4.Format("2006-01-02"))
+
+    // Output:
+    // 2024-03-01
+    // 2024-02-29
+    // 2025-03-01
+    // 2025-02-28
+}
+```
+
+### <span id="AddMonthSafe">AddMonthSafe</span>
+
+<p>增加/减少指定的月份，并确保日期是有效日期。</p>
+
+<b>函数签名:</b>
+
+```go
+func AddMonthSafe(t time.Time, months int) time.Time
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date1, _ := time.Parse("2006-01-02", "2025-01-31")
+    result1 := datetime.AddMonthSafe(date1, 1)
+
+    date2, _ := time.Parse("2006-01-02", "2024-02-29")
+    result2 := datetime.AddMonthSafe(date2, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+
+    // Output:
+    // 2025-02-28
+    // 2024-01-29
+}
+```
+
+### <span id="AddYearSafe">AddYearSafe</span>
+
+<p>增加/减少指定的年份，并确保日期是有效日期。</p>
+
+<b>函数签名:</b>
+
+```go
+func AddYearSafe(t time.Time, years int) time.Time
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2020-02-29")
+
+    result1 := datetime.AddYearSafe(date, 1)
+    result2 := datetime.AddYearSafe(date, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+
+    // Output:
+    // 2021-02-28
+    // 2019-02-28
 }
 ```
 

docs/api/packages/eventbus.md

@@ -0,0 +1,401 @@
+# EventBus
+
+EventbBus是一个事件总线，用于在应用程序中处理事件。
+
+<div STYLE="page-break-after: always;"></div>
+
+## 源码:
+
+-   [https://github.com/duke-git/lancet/blob/main/eventbus/eventbus.go](https://github.com/duke-git/lancet/blob/main/eventbus/eventbus.go)
+
+<div STYLE="page-break-after: always;"></div>
+
+## 用法:
+
+```go
+import (
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## 目录
+
+-   [NewEventBus](#NewEventBus)
+-   [Subscribe](#Subscribe)
+-   [Unsubscribe](#Unsubscribe)
+-   [Publish](#Publish)
+-   [ClearListeners](#ClearListeners)
+-   [ClearListenersByTopic](#ClearListenersByTopic)
+-   [GetListenersCount](#GetListenersCount)
+-   [GetAllListenersCount](#GetAllListenersCount)
+-   [GetEvents](#GetEvents)
+-   [SetErrorHandler](#SetErrorHandler)
+
+
+<div STYLE="page-break-after: always;"></div>
+
+## 文档
+
+### <span id="NewEventBus">NewEventBus</span>
+
+<p>创建EventBus实例。</p>
+
+<b>函数签名:</b>
+
+```go
+func NewEventBus[T any]() *EventBus[T]
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="Subscribe">Subscribe</span>
+
+<p>订阅具有特定事件主题和监听函数的事件。支持异步，事件优先级，事件过滤器。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) Subscribe(topic string, listener func(eventData T), async bool, priority int, filter func(eventData T) bool)
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    filter := func(eventData int) bool {
+        return eventData == 1
+    }
+
+    eb.Subscribe("event1", listener, false, 0, filter)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+    eb.Publish(Event[int]{Topic: "event1", Payload: 2})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="Unsubscribe">Unsubscribe</span>
+
+<p>取消订阅具有特定事件主题的事件。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) Unsubscribe(topic string, listener func(eventData T))
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.Unsubscribe("event1", listener)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="Publish">Publish</span>
+
+<p>发布一个带有特定事件主题和数据负载的事件。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) Publish(event Event[T])
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {
+        fmt.Println(eventData)
+    }, false, 0, nil)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="ClearListeners">ClearListeners</span>
+
+<p>清空所有事件监听器。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) ClearListeners()
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.ClearListeners()
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="ClearListenersByTopic">ClearListenersByTopic</span>
+
+<p>清空特定事件监听器。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) ClearListenersByTopic(topic string)
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.ClearListenersByTopic("event1")
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="GetListenersCount">GetListenersCount</span>
+
+<p>获取特定事件的监听器数量。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) GetListenersCount(topic string) int
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+
+    count := eb.GetListenersCount("event1")
+
+    fmt.Println(count)
+
+    // Output:
+    // 2
+}
+```
+
+### <span id="GetAllListenersCount">GetAllListenersCount</span>
+
+<p>获取所有事件的监听器数量。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) GetAllListenersCount() int
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+    count := eb.GetAllListenersCount()
+
+    fmt.Println(count)
+
+    // Output:
+    // 2
+}
+```
+
+### <span id="GetEvents">GetEvents</span>
+
+<p>获取所有事件的topic。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) GetEvents() []string
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+    events := eb.GetEvents()
+
+    for _, event := range events {
+        fmt.Println(event)
+    }
+
+    // Output:
+    // event1
+    // event2
+}
+```
+
+### <span id="SetErrorHandler">SetErrorHandler</span>
+
+<p>设置事件的错误处理函数。</p>
+
+<b>函数签名:</b>
+
+```go
+func (eb *EventBus[T]) SetErrorHandler(handler func(err error))
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.SetErrorHandler(func(err error) {
+		fmt.Println(err)
+	})
+
+	eb.Subscribe("event1", func(eventData int) {
+		panic("error")
+	}, false, 0, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	// Output:
+	// error
+}
+```

docs/api/packages/slice.md

@@ -70,6 +70,7 @@ import (
 -   [FlatMap](#FlatMap)
 -   [Merge](#Merge)
 -   [Reverse](#Reverse)
+-   [ReverseCopy](#ReverseCopy)
 -   [Reduce<sup>deprecated</sup>](#Reduce)
 -   [ReduceConcurrent](#ReduceConcurrent)
 -   [ReduceBy](#ReduceBy)
@@ -78,6 +79,7 @@ import (
 -   [ReplaceAll](#ReplaceAll)
 -   [Repeat](#Repeat)
 -   [Shuffle](#Shuffle)
+-   [ShuffleCopy](#ShuffleCopy)
 -   [IsAscending](#IsAscending)
 -   [IsDescending](#IsDescending)
 -   [IsSorted](#IsSorted)
@@ -1760,6 +1762,38 @@ func main() {
 }
 ```
 
+### <span id="ReverseCopy">ReverseCopy</span>
+
+<p>反转切片中的元素顺序, 不改变原slice。</p>
+
+<b>函数签名:</b>
+
+```go
+func ReverseCopy[T any](slice []T) []T
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+    strs := []string{"a", "b", "c", "d"}
+
+    reversedStrs := slice.ReverseCopy(strs)
+
+    fmt.Println(reversedStrs)
+    fmt.Println(strs)
+
+    // Output:
+    // [d c b a]
+    // [a b c d]
+}
+```
+
 ### <span id="Reduce">Reduce</span>
 
 <p>将切片中的元素依次运行iteratee函数，返回运行结果。</p>
@@ -1994,7 +2028,7 @@ func main() {
 
 ### <span id="Shuffle">Shuffle</span>
 
-<p>随机打乱切片中的元素顺序</p>
+<p>随机打乱切片中的元素顺序。</p>
 
 <b>函数签名:</b>
 
@@ -2021,6 +2055,37 @@ func main() {
 }
 ```
 
+### <span id="ShuffleCopy">ShuffleCopy</span>
+
+<p>随机打乱切片中的元素顺序, 不改变原切片。</p>
+
+<b>函数签名:</b>
+
+```go
+func ShuffleCopy[T any](slice []T) []T
+```
+
+<b>示例:<span style="float:right;display:inline-block;">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+    nums := []int{1, 2, 3, 4, 5}
+    result := slice.ShuffleCopy(nums)
+
+    fmt.Println(result)
+    fmt.Println(nums)
+
+    // Output:
+    // [3 1 5 4 2] (random order)
+    // [1 2 3 4 5]
+}
+```
+
 ### <span id="IsAscending">IsAscending</span>
 
 <p>检查切片元素是否按升序排列。</p>

docs/api/packages/validator.md

@@ -49,6 +49,7 @@ import (
 -   [IsIp](#IsIp)
 -   [IsIpV4](#IsIpV4)
 -   [IsIpV6](#IsIpV6)
+-   [IsIpPort](#IsIpPort)
 -   [IsStrongPassword](#IsStrongPassword)
 -   [IsUrl](#IsUrl)
 -   [IsWeakPassword](#IsWeakPassword)
@@ -990,6 +991,43 @@ func main() {
 }
 ```
 
+### <span id="IsIpPort">IsIpPort</span>
+
+<p>检查字符串是否是ip:port格式。</p>
+
+<b>函数签名:</b>
+
+```go
+func IsIpPort(str string) bool
+```
+
+<b>示例:<span style="float:right;display:inline-block">[运行](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/validator"
+)
+
+func main() {
+    result1 := validator.IsIpPort("127.0.0.1:8080")
+    result2 := validator.IsIpPort("[0:0:0:0:0:0:0:1]:8080")
+    result3 := validator.IsIpPort(":8080")
+    result4 := validator.IsIpPort("::0:0:0:0:")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+
+    // Output:
+    // true
+    // true
+    // false
+    // false
+}
+```
+
 ### <span id="IsStrongPassword">IsStrongPassword</span>
 
 <p>验证字符串是否是强密码：(alpha(lower+upper) + number + special chars(!@#$%^&*()?&gt&lt))。</p>

docs/en/api/packages/datetime.md

@@ -24,9 +24,14 @@ import (
 ## Index
 
 -   [AddDay](#AddDay)
+-   [AddWeek](#AddWeek)
+-   [AddMonth](#AddMonth)
 -   [AddHour](#AddHour)
 -   [AddMinute](#AddMinute)
 -   [AddYear](#AddYear)
+-   [AddDaySafe](#AddDaySafe)
+-   [AddMonthSafe](#AddMonthSafe)
+-   [AddYearSafe](#AddYearSafe)
 -   [BeginOfMinute](#BeginOfMinute)
 -   [BeginOfHour](#BeginOfHour)
 -   [BeginOfDay](#BeginOfDay)
@@ -111,7 +116,7 @@ import (
 <b>Signature:</b>
 
 ```go
-func AddDay(t time.Time, day int64) time.Time
+func AddDay(t time.Time, days int64) time.Time
 ```
 
 <b>Example:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/dIGbs_uTdFa)</span></b>
@@ -126,20 +131,89 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    tomorrow := datetime.AddDay(now, 1)
+    after1Day := datetime.AddDay(date, 1)
-    diff1 := tomorrow.Sub(now)
+    before1Day := datetime.AddDay(date, -1)
 
-    yesterday := datetime.AddDay(now, -1)
+    fmt.Println(after1Day.Format("2006-01-02 15:04:05"))
-    diff2 := yesterday.Sub(now)
+    fmt.Println(before1Day.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 24h0m0s
+    // 2021-01-02 00:00:00
-    // -24h0m0s
+    // 2020-12-31 00:00:00
+}
+```
+
+### <span id="AddWeek">AddWeek</span>
+
+<p>Add or sub weeks to time.</p>
+
+<b>Signature:</b>
+
+```go
+func AddWeek(t time.Time, weeks int64) time.Time
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+    after2Weeks := datetime.AddWeek(date, 2)
+    before2Weeks := datetime.AddWeek(date, -2)
+
+    fmt.Println(after2Weeks.Format("2006-01-02"))
+    fmt.Println(before2Weeks.Format("2006-01-02"))
+
+    // Output:
+    // 2021-01-15
+    // 2020-12-18
+}
+```
+
+### <span id="AddMonth">AddMonth</span>
+
+<p>Add or sub months to time.</p>
+
+<b>Signature:</b>
+
+```go
+func AddMonth(t time.Time, months int64) time.Time
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
+
+    after2Months := datetime.AddMonth(date, 2)
+    before2Months := datetime.AddMonth(date, -2)
+
+    fmt.Println(after2Months.Format("2006-01-02"))
+    fmt.Println(before2Months.Format("2006-01-02"))
+
+    // Output:
+    // 2021-03-01
+    // 2020-11-01
 }
 ```
 
@@ -165,20 +239,17 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    after2Hours := datetime.AddHour(now, 2)
+    after2Hours := datetime.AddHour(date, 2)
-    diff1 := after2Hours.Sub(now)
+    before2Hours := datetime.AddHour(date, -2)
 
-    before2Hours := datetime.AddHour(now, -2)
+    fmt.Println(after2Hours.Format("2006-01-02 15:04:05"))
-    diff2 := before2Hours.Sub(now)
+    fmt.Println(before2Hours.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 2h0m0s
+    // 2021-01-01 02:00:00
-    // -2h0m0s
+    // 2020-12-31 22:00:00
 }
 ```
 
@@ -204,20 +275,17 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02 15:04:05", "2021-01-01 00:00:00")
 
-    after2Minutes := datetime.AddMinute(now, 2)
+    after2Minutes := datetime.AddMinute(date, 2)
-    diff1 := after2Minutes.Sub(now)
+    before2Minutes := datetime.AddMinute(date, -2)
 
-    before2Minutes := datetime.AddMinute(now, -2)
+    fmt.Println(after2Minutes.Format("2006-01-02 15:04:05"))
-    diff2 := before2Minutes.Sub(now)
+    fmt.Println(before2Minutes.Format("2006-01-02 15:04:05"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 2m0s
+    // 2021-01-01 00:02:00
-    // -2m0s
+    // 2020-12-31 23:58:00
 }
 ```
 
@@ -243,20 +311,137 @@ import (
 )
 
 func main() {
-    now := time.Now()
+    date, _ := time.Parse("2006-01-02", "2021-01-01")
 
-    after1Year := datetime.AddYear(now, 1)
+    after2Years := AddYear(date, 2)
-    diff1 := after1Year.Sub(now)
+    before2Years := AddYear(date, -2)
 
-    before1Year := datetime.AddYear(now, -1)
+    fmt.Println(after2Years.Format("2006-01-02"))
-    diff2 := before1Year.Sub(now)
+    fmt.Println(before2Years.Format("2006-01-02"))
-
-    fmt.Println(diff1)
-    fmt.Println(diff2)
 
     // Output:
-    // 8760h0m0s
+    // 2023-01-01
-    // -8760h0m0s
+    // 2019-01-01
+}
+```
+
+### <span id="AddDaySafe">AddDaySafe</span>
+
+<p>Add or sub days to the time and ensure that the returned date does not exceed the valid date of the target year and month.</p>
+
+<b>Signature:</b>
+
+```go
+func AddDaySafe(t time.Time, days int) time.Time
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    leapYearDate1, _ := time.Parse("2006-01-02", "2024-02-29")
+    result1 := datetime.AddDaySafe(leapYearDate1, 1)
+
+    leapYearDate2, _ := time.Parse("2006-01-02", "2024-03-01")
+    result2 := datetime.AddDaySafe(leapYearDate2, -1)
+
+    nonLeapYearDate1, _ := time.Parse("2006-01-02", "2025-02-28")
+    result3 := datetime.AddDaySafe(nonLeapYearDate1, 1)
+
+    nonLeaYearDate2, _ := time.Parse("2006-01-02", "2025-03-01")
+    result4 := datetime.AddDaySafe(nonLeaYearDate2, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+    fmt.Println(result3.Format("2006-01-02"))
+    fmt.Println(result4.Format("2006-01-02"))
+
+    // Output:
+    // 2024-03-01
+    // 2024-02-29
+    // 2025-03-01
+    // 2025-02-28
+}
+```
+
+### <span id="AddMonthSafe">AddMonthSafe</span>
+
+<p>Add or sub months to the time and ensure that the returned date does not exceed the valid date of the target year and month.</p>
+
+<b>Signature:</b>
+
+```go
+func AddMonthSafe(t time.Time, months int) time.Time
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date1, _ := time.Parse("2006-01-02", "2025-01-31")
+    result1 := datetime.AddMonthSafe(date1, 1)
+
+    date2, _ := time.Parse("2006-01-02", "2024-02-29")
+    result2 := datetime.AddMonthSafe(date2, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+
+    // Output:
+    // 2025-02-28
+    // 2024-01-29
+}
+```
+
+### <span id="AddYearSafe">AddYearSafe</span>
+
+<p>Add or sub years to the time and ensure that the returned date does not exceed the valid date of the target year and month.</p>
+
+<b>Signature:</b>
+
+```go
+func AddYearSafe(t time.Time, years int) time.Time
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+    "github.com/duke-git/lancet/v2/datetime"
+)
+
+func main() {
+    date, _ := time.Parse("2006-01-02", "2020-02-29")
+
+    result1 := datetime.AddYearSafe(date, 1)
+    result2 := datetime.AddYearSafe(date, -1)
+
+    fmt.Println(result1.Format("2006-01-02"))
+    fmt.Println(result2.Format("2006-01-02"))
+
+    // Output:
+    // 2021-02-28
+    // 2019-02-28
 }
 ```
 
@@ -1342,7 +1527,7 @@ import (
 func main() {
     result1 := datetime.NowDateOrTime("yyyy-mm-dd hh:mm:ss")
 
-	result2 := datetime.NowDateOrTime("yyyy-mm-dd hh:mm:ss", "EST")
+    result2 := datetime.NowDateOrTime("yyyy-mm-dd hh:mm:ss", "EST")
 
     fmt.Println(result1)
     fmt.Println(result2)

docs/en/api/packages/eventbus.md

@@ -0,0 +1,401 @@
+# EventBus
+
+EventBus is an event bus used for handling events within an application.
+
+<div STYLE="page-break-after: always;"></div>
+
+## Source:
+
+-   [https://github.com/duke-git/lancet/blob/main/eventbus/eventbus.go](https://github.com/duke-git/lancet/blob/main/eventbus/eventbus.go)
+
+<div STYLE="page-break-after: always;"></div>
+
+## Usage:
+
+```go
+import (
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## Index
+
+-   [NewEventBus](#NewEventBus)
+-   [Subscribe](#Subscribe)
+-   [Unsubscribe](#Unsubscribe)
+-   [Publish](#Publish)
+-   [ClearListeners](#ClearListeners)
+-   [ClearListenersByTopic](#ClearListenersByTopic)
+-   [GetListenersCount](#GetListenersCount)
+-   [GetAllListenersCount](#GetAllListenersCount)
+-   [GetEvents](#GetEvents)
+-   [SetErrorHandler](#SetErrorHandler)
+
+
+<div STYLE="page-break-after: always;"></div>
+
+## Documentation
+
+### <span id="NewEventBus">NewEventBus</span>
+
+<p>Create an EventBus instance.</p>
+
+<b>Signature:</b>
+
+```go
+func NewEventBus[T any]() *EventBus[T]
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="Subscribe">Subscribe</span>
+
+<p>Subscribes to an event with a specific event topic and listener function.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) Subscribe(topic string, listener func(eventData T), async bool, priority int, filter func(eventData T) bool)
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    filter := func(eventData int) bool {
+        return eventData == 1
+    }
+
+    eb.Subscribe("event1", listener, false, 0, filter)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+    eb.Publish(Event[int]{Topic: "event1", Payload: 2})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="Unsubscribe">Unsubscribe</span>
+
+<p>Unsubscribes from an event with a specific event topic and listener function.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) Unsubscribe(topic string, listener func(eventData T))
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.Unsubscribe("event1", listener)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="Publish">Publish</span>
+
+<p>Publishes an event with a specific event topic and data payload.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) Publish(event Event[T])
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {
+        fmt.Println(eventData)
+    }, false, 0, nil)
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    // Output:
+    // 1
+}
+```
+
+### <span id="ClearListeners">ClearListeners</span>
+
+<p>Clears all the listeners.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) ClearListeners()
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.ClearListeners()
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="ClearListenersByTopic">ClearListenersByTopic</span>
+
+<p>Clears all the listeners by topic.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) ClearListenersByTopic(topic string)
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    receivedData := 0
+    listener := func(eventData int) {
+        receivedData = eventData
+    }
+
+    eb.Subscribe("event1", listener, false, 0, nil)
+    eb.ClearListenersByTopic("event1")
+
+    eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+    fmt.Println(receivedData)
+
+    // Output:
+    // 0
+}
+```
+
+### <span id="GetListenersCount">GetListenersCount</span>
+
+<p>Returns the number of listeners for a specific event topic.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) GetListenersCount(topic string) int
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+
+    count := eb.GetListenersCount("event1")
+
+    fmt.Println(count)
+
+    // Output:
+    // 2
+}
+```
+
+### <span id="GetAllListenersCount">GetAllListenersCount</span>
+
+<p>Returns the total number of all listeners.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) GetAllListenersCount() int
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+    count := eb.GetAllListenersCount()
+
+    fmt.Println(count)
+
+    // Output:
+    // 2
+}
+```
+
+### <span id="GetEvents">GetEvents</span>
+
+<p>Returns all the events topics.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) GetEvents() []string
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+    eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+    events := eb.GetEvents()
+
+    for _, event := range events {
+        fmt.Println(event)
+    }
+
+    // Output:
+    // event1
+    // event2
+}
+```
+
+### <span id="SetErrorHandler">SetErrorHandler</span>
+
+<p>Sets the error handler function.</p>
+
+<b>Signature:</b>
+
+```go
+func (eb *EventBus[T]) SetErrorHandler(handler func(err error))
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/eventbus"
+)
+
+func main() {
+    eb := eventbus.NewEventBus[int]()
+
+    eb.SetErrorHandler(func(err error) {
+		fmt.Println(err)
+	})
+
+	eb.Subscribe("event1", func(eventData int) {
+		panic("error")
+	}, false, 0, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	// Output:
+	// error
+}
+```

docs/en/api/packages/slice.md

@@ -70,6 +70,7 @@ import (
 -   [FlatMap](#FlatMap)
 -   [Merge](#Merge)
 -   [Reverse](#Reverse)
+-   [ReverseCopy](#ReverseCopy)
 -   [Reduce<sup>deprecated</sup>](#Reduce)
 -   [ReduceConcurrent](#ReduceConcurrent)
 -   [ReduceBy](#ReduceBy)
@@ -78,6 +79,7 @@ import (
 -   [ReplaceAll](#ReplaceAll)
 -   [Repeat](#Repeat)
 -   [Shuffle](#Shuffle)
+-   [ShuffleCopy](#ShuffleCopy)
 -   [IsAscending](#IsAscending)
 -   [IsDescending](#IsDescending)
 -   [IsSorted](#IsSorted)
@@ -842,7 +844,7 @@ func main() {
 
 ### <span id="EqualUnordered">EqualUnordered</span>
 
-<p>Checks if two slices are equal: the same length and all elements' value are equal (unordered).</p>
+<p>Checks if two slices are equal: the same length and all elements value are equal (unordered).</p>
 
 <b>Signature:</b>
 
@@ -1756,6 +1758,38 @@ func main() {
 }
 ```
 
+### <span id="ReverseCopy">ReverseCopy</span>
+
+<p>Return a new slice of element order is reversed to the given slice.</p>
+
+<b>Signature:</b>
+
+```go
+func ReverseCopy[T any](slice []T) []T
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+    strs := []string{"a", "b", "c", "d"}
+
+    reversedStrs := slice.ReverseCopy(strs)
+
+    fmt.Println(reversedStrs)
+    fmt.Println(strs)
+
+    // Output:
+    // [d c b a]
+    // [a b c d]
+}
+```
+
 ### <span id="Reduce">Reduce</span>
 
 <p>Reduce slice.</p>
@@ -2018,6 +2052,37 @@ func main() {
 }
 ```
 
+### <span id="ShuffleCopy">ShuffleCopy</span>
+
+<p>Return a new slice with elements shuffled.</p>
+
+<b>Signature:</b>
+
+```go
+func ShuffleCopy[T any](slice []T) []T
+```
+
+<b>Example:<span style="float:right;display:inline-block;">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+    nums := []int{1, 2, 3, 4, 5}
+    result := slice.ShuffleCopy(nums)
+
+    fmt.Println(result)
+    fmt.Println(nums)
+
+    // Output:
+    // [3 1 5 4 2] (random order)
+    // [1 2 3 4 5]
+}
+```
+
 ### <span id="IsAscending">IsAscending</span>
 
 <p>Checks if a slice is ascending order.</p>

docs/en/api/packages/validator.md

@@ -49,6 +49,7 @@ import (
 -   [IsIp](#IsIp)
 -   [IsIpV4](#IsIpV4)
 -   [IsIpV6](#IsIpV6)
+-   [IsIpPort](#IsIpPort)
 -   [IsStrongPassword](#IsStrongPassword)
 -   [IsUrl](#IsUrl)
 -   [IsWeakPassword](#IsWeakPassword)
@@ -992,6 +993,43 @@ func main() {
 }
 ```
 
+### <span id="IsIpPort">IsIpPort</span>
+
+<p>Check if the string is ip:port</p>
+
+<b>Signature:</b>
+
+```go
+func IsIpPort(str string) bool
+```
+
+<b>Example:<span style="float:right;display:inline-block">[Run](todo)</span></b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/validator"
+)
+
+func main() {
+    result1 := validator.IsIpPort("127.0.0.1:8080")
+	result2 := validator.IsIpPort("[0:0:0:0:0:0:0:1]:8080")
+	result3 := validator.IsIpPort(":8080")
+	result4 := validator.IsIpPort("::0:0:0:0:")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+
+	// Output:
+	// true
+	// true
+	// false
+	// false
+}
+```
+
 ### <span id="IsStrongPassword">IsStrongPassword</span>
 
 <p>Check if the string is strong password (alpha(lower+upper) + number + special chars(!@#$%^&*()?gt&lt)).</p>

eventbus/eventbus.go

@@ -33,6 +33,7 @@ type EventListener[T any] struct {
 }
 
 // NewEventBus creates a new EventBus.
+// Play: todo
 func NewEventBus[T any]() *EventBus[T] {
 	return &EventBus[T]{
 		listeners: sync.Map{},
@@ -40,6 +41,7 @@ func NewEventBus[T any]() *EventBus[T] {
 }
 
 // Subscribe subscribes to an event with a specific event topic and listener function.
+// Play: todo
 func (eb *EventBus[T]) Subscribe(topic string, listener func(eventData T), async bool, priority int, filter func(eventData T) bool) {
 	eb.mu.Lock()
 	defer eb.mu.Unlock()
@@ -63,6 +65,7 @@ func (eb *EventBus[T]) Subscribe(topic string, listener func(eventData T), async
 }
 
 // Unsubscribe unsubscribes from an event with a specific event topic and listener function.
+// Play: todo
 func (eb *EventBus[T]) Unsubscribe(topic string, listener func(eventData T)) {
 	eb.mu.Lock()
 	defer eb.mu.Unlock()
@@ -86,6 +89,7 @@ func (eb *EventBus[T]) Unsubscribe(topic string, listener func(eventData T)) {
 }
 
 // Publish publishes an event with a specific event topic and data payload.
+// Play: todo
 func (eb *EventBus[T]) Publish(event Event[T]) {
 	eb.mu.RLock()
 	defer eb.mu.RUnlock()
@@ -126,6 +130,7 @@ func (eb *EventBus[T]) SetErrorHandler(handler func(err error)) {
 }
 
 // ClearListeners clears all the listeners.
+// Play: todo
 func (eb *EventBus[T]) ClearListeners() {
 	eb.mu.Lock()
 	defer eb.mu.Unlock()
@@ -134,6 +139,7 @@ func (eb *EventBus[T]) ClearListeners() {
 }
 
 // ClearListenersByTopic clears all the listeners by topic.
+// Play: todo
 func (eb *EventBus[T]) ClearListenersByTopic(topic string) {
 	eb.mu.Lock()
 	defer eb.mu.Unlock()
@@ -142,6 +148,7 @@ func (eb *EventBus[T]) ClearListenersByTopic(topic string) {
 }
 
 // GetListenersCount returns the number of listeners for a specific event topic.
+// Play: todo
 func (eb *EventBus[T]) GetListenersCount(topic string) int {
 	eb.mu.RLock()
 	defer eb.mu.RUnlock()
@@ -156,6 +163,7 @@ func (eb *EventBus[T]) GetListenersCount(topic string) int {
 }
 
 // GetAllListenersCount returns the total number of listeners.
+// Play: todo
 func (eb *EventBus[T]) GetAllListenersCount() int {
 	eb.mu.RLock()
 	defer eb.mu.RUnlock()
@@ -170,6 +178,7 @@ func (eb *EventBus[T]) GetAllListenersCount() int {
 }
 
 // GetEvents returns all the events topics.
+// Play: todo
 func (eb *EventBus[T]) GetEvents() []string {
 	eb.mu.RLock()
 	defer eb.mu.RUnlock()

eventbus/eventbus_example_test.go

@@ -0,0 +1,229 @@
+package eventbus
+
+import (
+	"fmt"
+	"sync"
+	"time"
+)
+
+func ExampleEventBus_Subscribe() {
+	eb := NewEventBus[string]()
+	eb.Subscribe("event1", func(eventData string) {
+		fmt.Println(eventData)
+	}, false, 0, nil)
+
+	eb.Publish(Event[string]{Topic: "event1", Payload: "hello"})
+
+	// Output:
+	// hello
+}
+
+func ExampleEventBus_Unsubscribe() {
+	eb := NewEventBus[int]()
+
+	receivedData := 0
+	listener := func(eventData int) {
+		receivedData = eventData
+	}
+
+	eb.Subscribe("event1", listener, false, 0, nil)
+	eb.Unsubscribe("event1", listener)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	fmt.Println(receivedData)
+
+	// Output:
+	// 0
+}
+
+func ExampleEventBus_Subscribe_withFilter() {
+	eb := NewEventBus[int]()
+
+	receivedData := 0
+	listener := func(eventData int) {
+		receivedData = eventData
+	}
+
+	filter := func(eventData int) bool {
+		return eventData == 1
+	}
+
+	eb.Subscribe("event1", listener, false, 0, filter)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+	eb.Publish(Event[int]{Topic: "event1", Payload: 2})
+
+	fmt.Println(receivedData)
+
+	// Output:
+	// 1
+}
+
+func ExampleEventBus_Subscribe_withPriority() {
+	eb := NewEventBus[int]()
+
+	eb.Subscribe("event1", func(eventData int) {
+		fmt.Println(eventData)
+	}, false, 0, nil)
+
+	eb.Subscribe("event1", func(eventData int) {
+		fmt.Println(eventData)
+	}, false, 1, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	// Output:
+	// 1
+	// 1
+}
+
+func ExampleEventBus_Subscribe_async() {
+	eb := NewEventBus[int]()
+
+	var wg sync.WaitGroup
+	wg.Add(1)
+
+	eb.Subscribe("event1", func(eventData int) {
+		time.Sleep(100 * time.Millisecond)
+		fmt.Println(eventData)
+		wg.Done()
+	}, true, 1, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+	wg.Wait()
+
+	// Output:
+	// 1
+}
+
+func ExampleEventBus_Publish() {
+	eb := NewEventBus[int]()
+
+	eb.Subscribe("event1", func(eventData int) {
+		fmt.Println(eventData)
+	}, false, 0, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	// Output:
+	// 1
+}
+
+func ExampleEventBus() {
+	eb := NewEventBus[int]()
+
+	receivedData := 0
+	listener := func(eventData int) {
+		receivedData = eventData
+	}
+
+	eb.Subscribe("event1", listener, false, 0, nil)
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	fmt.Println(receivedData)
+
+	// Output:
+	// 1
+}
+
+func ExampleEventBus_ClearListeners() {
+	eb := NewEventBus[int]()
+
+	receivedData := 0
+	listener := func(eventData int) {
+		receivedData = eventData
+	}
+
+	eb.Subscribe("event1", listener, false, 0, nil)
+	eb.ClearListeners()
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	fmt.Println(receivedData)
+
+	// Output:
+	// 0
+}
+
+func ExampleEventBus_ClearListenersByTopic() {
+	eb := NewEventBus[int]()
+
+	receivedData := 0
+	listener := func(eventData int) {
+		receivedData = eventData
+	}
+
+	eb.Subscribe("event1", listener, false, 0, nil)
+	eb.ClearListenersByTopic("event1")
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	fmt.Println(receivedData)
+
+	// Output:
+	// 0
+}
+
+func ExampleEventBus_GetListenersCount() {
+	eb := NewEventBus[int]()
+
+	eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+	eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+
+	count := eb.GetListenersCount("event1")
+
+	fmt.Println(count)
+
+	// Output:
+	// 2
+}
+
+func ExampleEventBus_SetErrorHandler() {
+	eb := NewEventBus[int]()
+
+	eb.SetErrorHandler(func(err error) {
+		fmt.Println(err)
+	})
+
+	eb.Subscribe("event1", func(eventData int) {
+		panic("error")
+	}, false, 0, nil)
+
+	eb.Publish(Event[int]{Topic: "event1", Payload: 1})
+
+	// Output:
+	// error
+}
+
+func ExampleEventBus_GetAllListenersCount() {
+
+	eb := NewEventBus[int]()
+
+	eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+	eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+	count := eb.GetAllListenersCount()
+
+	fmt.Println(count)
+
+	// Output:
+	// 2
+}
+
+func ExampleEventBus_GetEvents() {
+	eb := NewEventBus[int]()
+
+	eb.Subscribe("event1", func(eventData int) {}, false, 0, nil)
+	eb.Subscribe("event2", func(eventData int) {}, false, 0, nil)
+
+	events := eb.GetEvents()
+
+	for _, event := range events {
+		fmt.Println(event)
+	}
+
+	// Output:
+	// event1
+	// event2
+}

eventbus/eventbus_test.go

@@ -41,9 +41,9 @@ func TestEventBus_Unsubscribe(t *testing.T) {
 	assert.Equal(0, receivedData)
 }
 
-func TestEventBus_Subscribe_WithFilter(t *testing.T) {
+func TestEventBus_Subscribe_withFilter(t *testing.T) {
 	t.Parallel()
-	assert := internal.NewAssert(t, "TestEventBus_Subscribe_WithFilter")
+	assert := internal.NewAssert(t, "TestEventBus_Subscribe_withFilter")
 
 	eb := NewEventBus[int]()
 
@@ -64,9 +64,9 @@ func TestEventBus_Subscribe_WithFilter(t *testing.T) {
 	assert.Equal(1, receivedData)
 }
 
-func TestEventBus_Subscribe_WithPriority(t *testing.T) {
+func TestEventBus_Subscribe_withPriority(t *testing.T) {
 	t.Parallel()
-	assert := internal.NewAssert(t, "TestEventBus_Subscribe_WithPriority")
+	assert := internal.NewAssert(t, "TestEventBus_Subscribe_withPriority")
 
 	eb := NewEventBus[int]()
 
@@ -87,9 +87,9 @@ func TestEventBus_Subscribe_WithPriority(t *testing.T) {
 	assert.Equal([]int{2, 1}, receivedData)
 }
 
-func TestEventBus_Subscribe_Async(t *testing.T) {
+func TestEventBus_Subscribe_async(t *testing.T) {
 	t.Parallel()
-	assert := internal.NewAssert(t, "TestEventBus_Subscribe_Async")
+	assert := internal.NewAssert(t, "TestEventBus_Subscribe_async")
 
 	eb := NewEventBus[string]()
 
@@ -215,6 +215,5 @@ func TestEventBus_GetEvents(t *testing.T) {
 	events := eb.GetEvents()
 
 	assert.Equal(2, len(events))
-	assert.Equal("event1", events[0])
+	assert.EqualValues([]string{"event1", "event2"}, events)
-	assert.Equal("event2", events[1])
 }

mathutil/mathutil.go

@@ -145,10 +145,14 @@ func CeilToString[T constraints.Float | constraints.Integer](x T, n int) string
 
 // Max return max value of numbers.
 // Play: https://go.dev/play/p/cN8DHI0rTkH
-func Max[T constraints.Integer | constraints.Float](numbers ...T) T {
+func Max[T constraints.Ordered](items ...T) T {
-	max := numbers[0]
+	if len(items) < 1 {
+		panic("mathutil.Max: empty list")
+	}
 
-	for _, v := range numbers {
+	max := items[0]
+
+	for _, v := range items {
 		if max < v {
 			max = v
 		}
@@ -181,10 +185,14 @@ func MaxBy[T any](slice []T, comparator func(T, T) bool) T {
 
 // Min return min value of numbers.
 // Play: https://go.dev/play/p/21BER_mlGUj
-func Min[T constraints.Integer | constraints.Float](numbers ...T) T {
+func Min[T constraints.Ordered](items ...T) T {
-	min := numbers[0]
+	if len(items) < 1 {
+		panic("mathutil.min: empty list")
+	}
 
-	for _, v := range numbers {
+	min := items[0]
+
+	for _, v := range items {
 		if min > v {
 			min = v
 		}

mathutil/mathutil_test.go

@@ -178,6 +178,7 @@ func TestMax(t *testing.T) {
 	assert.Equal(0, Max(0, 0))
 	assert.Equal(3, Max(1, 2, 3))
 	assert.Equal(1.4, Max(1.2, 1.4, 1.1, 1.4))
+	assert.Equal("abc", Max("a", "ab", "abc"))
 
 	type Integer int
 	assert.Equal(Integer(1), Max(Integer(1), Integer(0)))
@@ -212,6 +213,8 @@ func TestMin(t *testing.T) {
 	assert.Equal(0, Min(0, 0))
 	assert.Equal(1, Min(1, 2, 3))
 	assert.Equal(1.1, Min(1.2, 1.4, 1.1, 1.4))
+
+	assert.Equal("a", Min("a", "ab", "abc"))
 }
 
 func TestMinBy(t *testing.T) {

slice/slice.go

@@ -1002,7 +1002,19 @@ func Reverse[T any](slice []T) {
 	}
 }
 
-// Shuffle the slice.
+// ReverseCopy return a new slice of element order is reversed to the given slice.
+// Play: todo
+func ReverseCopy[T any](slice []T) []T {
+	result := make([]T, len(slice))
+
+	for i, j := 0, len(slice)-1; i < len(slice); i, j = i+1, j-1 {
+		result[i] = slice[j]
+	}
+
+	return result
+}
+
+// Shuffle return a new slice with elements shuffled.
 // Play: https://go.dev/play/p/YHvhnWGU3Ge
 func Shuffle[T any](slice []T) []T {
 	rand.Seed(time.Now().UnixNano())
@@ -1014,6 +1026,20 @@ func Shuffle[T any](slice []T) []T {
 	return slice
 }
 
+// ShuffleCopy return a new slice with elements shuffled.
+// Play: todo
+func ShuffleCopy[T any](slice []T) []T {
+	result := make([]T, len(slice))
+	copy(result, slice)
+
+	rand.Seed(time.Now().UnixNano())
+	rand.Shuffle(len(result), func(i, j int) {
+		result[i], result[j] = result[j], result[i]
+	})
+
+	return result
+}
+
 // IsAscending checks if a slice is ascending order.
 // Play: https://go.dev/play/p/9CtsFjet4SH
 func IsAscending[T constraints.Ordered](slice []T) bool {

slice/slice_example_test.go

@@ -937,6 +937,41 @@ func ExampleReverse() {
 	// [d c b a]
 }
 
+func ExampleReverseCopy() {
+	strs := []string{"a", "b", "c", "d"}
+
+	reversedStrs := ReverseCopy(strs)
+
+	fmt.Println(reversedStrs)
+	fmt.Println(strs)
+
+	// Output:
+	// [d c b a]
+	// [a b c d]
+}
+
+func ExampleShuffle() {
+	strs := []string{"a", "b", "c", "d"}
+	Shuffle(strs)
+
+	fmt.Println(len(strs))
+
+	// Output:
+	// 4
+}
+
+func ExampleShuffleCopy() {
+	strs := []string{"a", "b", "c", "d"}
+	shuffledStrs := ShuffleCopy(strs)
+
+	fmt.Println(len(shuffledStrs))
+	fmt.Println(strs)
+
+	// Output:
+	// 4
+	// [a b c d]
+}
+
 func ExampleIsAscending() {
 
 	result1 := IsAscending([]int{1, 2, 3, 4, 5})

slice/slice_test.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"math"
 	"reflect"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
@@ -1114,6 +1115,17 @@ func TestReverse(t *testing.T) {
 	assert.Equal([]string{"e", "d", "c", "b", "a"}, s2)
 }
 
+func TestReverseCopy(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestReverseCopy")
+
+	numbers := []int{1, 2, 3, 4, 5}
+	reversedNumbers := ReverseCopy(numbers)
+
+	assert.Equal([]int{5, 4, 3, 2, 1}, reversedNumbers)
+	assert.Equal([]int{1, 2, 3, 4, 5}, numbers)
+}
+
 func TestDifference(t *testing.T) {
 	t.Parallel()
 
@@ -1329,6 +1341,18 @@ func TestShuffle(t *testing.T) {
 	assert.Equal(5, len(result))
 }
 
+func TestShuffleCopy(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestShuffleCopy")
+
+	numbers := []int{1, 2, 3, 4, 5}
+	result := ShuffleCopy(numbers)
+
+	assert.Equal(5, len(result))
+	assert.Equal([]int{1, 2, 3, 4, 5}, numbers)
+}
+
 func TestIndexOf(t *testing.T) {
 	t.Parallel()
 
@@ -1794,6 +1818,8 @@ func TestFilterConcurrent(t *testing.T) {
 		nums := []int{1, 2, 3, 4, 5, 6}
 		expected := []int{4, 5, 6}
 		actual := FilterConcurrent(nums, func(_, n int) bool { return n > 3 }, 4)
+		sort.Ints(actual)
+		sort.Ints(expected)
 		assert.Equal(expected, actual)
 	})
 }

validator/validator.go

@@ -207,6 +207,18 @@ func IsIp(ipstr string) bool {
 	return ip != nil
 }
 
+// IsIpPort check if the string is ip:port.
+// Play:
+func IsIpPort(str string) bool {
+	host, port, err := net.SplitHostPort(str)
+	if err != nil {
+		return false
+	}
+
+	ip := net.ParseIP(host)
+	return ip != nil && IsPort(port)
+}
+
 // IsIpV4 check if the string is a ipv4 address.
 // Play: https://go.dev/play/p/zBGT99EjaIu
 func IsIpV4(ipstr string) bool {

validator/validator_example_test.go

@@ -348,6 +348,24 @@ func ExampleIsIp() {
 	// false
 }
 
+func ExampleIsIpPort() {
+	result1 := IsIpPort("127.0.0.1:8080")
+	result2 := IsIpPort("[0:0:0:0:0:0:0:1]:8080")
+	result3 := IsIpPort(":8080")
+	result4 := IsIpPort("::0:0:0:0:")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+
+	// Output:
+	// true
+	// true
+	// false
+	// false
+}
+
 func ExampleIsIpV4() {
 	result1 := IsIpV4("127.0.0.1")
 	result2 := IsIpV4("::0:0:0:0:0:0:1")

validator/validator_test.go

@@ -225,6 +225,23 @@ func TestIsIp(t *testing.T) {
 	assert.Equal(false, IsIp("127"))
 }
 
+func TestIsIpPort(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestIsIpPort")
+
+	assert.Equal(true, IsIpPort("[0:0:0:0:0:0:0:1]:8080")) // valid IPv6 and port
+	assert.Equal(true, IsIpPort("127.0.0.1:8080"))         // valid IP and port
+
+	assert.Equal(false, IsIpPort(""))                     // empty string
+	assert.Equal(false, IsIpPort(":8080"))                // only port
+	assert.Equal(false, IsIpPort("127.0.0.1"))            // valid IP without port
+	assert.Equal(false, IsIpPort("0:0:0:0:0:0:0:1"))      // valid IPv6 without port
+	assert.Equal(false, IsIpPort("256.256.256.256:8080")) // invalid IP with valid port
+	assert.Equal(false, IsIpPort("256.256.256.256:abc"))  // invalid IP and invalid port
+	assert.Equal(false, IsIpPort("127.0.0.1:70000"))      // valid IP with invalid port
+}
+
 func TestIsIpV4(t *testing.T) {
 	t.Parallel()
 
@@ -315,7 +332,7 @@ func TestIsChinesePhone(t *testing.T) {
 
 	assert.Equal(true, IsChinesePhone("010-32116675"))
 	assert.Equal(true, IsChinesePhone("0464-8756213"))
-	assert.Equal(true, IsChinesePhone("0731-82251545")) //长沙晚报电话
+	assert.Equal(true, IsChinesePhone("0731-82251545")) // 长沙晚报电话
 	assert.Equal(false, IsChinesePhone("123-87562"))
 
 }