# 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 (opens new window)

# Usage:

import (
    "github.com/duke-git/lancet/v2/random"
)
 
        Copied!

# Documentation

# RandBytes

Generate random byte slice.

Signature:

func RandBytes(length int) []byte
 
        Copied!

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/v2/random"
)

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

# RandInt

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

Signature:

func RandInt(min, max int) int
 
        Copied!

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/v2/random"
)

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

# RandInt

Generate random given length string.

Signature:

func RandString(length int) string
 
        Copied!

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/v2/random"
)

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

# UUIdV4

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

Signature:

func UUIdV4() (string, error)
 
        Copied!

Example:

package main

import (
    "fmt"
    "github.com/duke-git/lancet/v2/random"
)

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