lancet/docs/random.md

Random

Package random implements some basic functions to generate random int and string.

Source:

https://github.com/duke-git/lancet/blob/main/random/random.go

Usage:

import (
    "github.com/duke-git/lancet/random"
)

Index

• RandBytes
• RandInt
• RandString
• UUIdV4

Documentation

RandBytes

Generate random byte slice.

Signature:

func RandBytes(length int) []byte

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/random"
)

func main() {
	randBytes := random.RandBytes(4)
	fmt.Println(randBytes)
}

RandInt

Generate random int between min and max, may contain min, not max.

Signature:

func RandInt(min, max int) int

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/random"
)

func main() {
	rInt := random.RandInt(1, 10)
	fmt.Println(rInt)
}

RandInt

Generate random given length string.

Signature:

func RandString(length int) string

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/random"
)

func main() {
	randStr := random.RandString(6)
	fmt.Println(randStr)
}

UUIdV4

Generate a random UUID of version 4 according to RFC 4122.

Signature:

func UUIdV4() (string, error)

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/random"
)

func main() {
	uuid, err := random.UUIdV4()
    if err != nil {
        return
    }
	fmt.Println(uuid)
}