random

Documentation

Overview

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

Index

• Constants
• func RandBool() bool
• func RandBoolSlice(length int) []bool
• func RandBytes(length int) []byte
• func RandFloat(min, max float64, precision int) float64
• func RandFloats(n int, min, max float64, precision int) []float64
• func RandInt(min, max int) int
• func RandIntSlice(length, min, max int) []int
• func RandLower(length int) string
• func RandNumeral(length int) string
• func RandNumeralOrLetter(length int) string
• func RandString(length int) string
• func RandStringSlice(charset string, sliceLen, strLen int) []string
• func RandSymbolChar(length int) string
• func RandUniqueIntSlice(n, min, max int) []int
• func RandUpper(length int) string
• func UUIdV4() (string, error)

Constants

const (
	MaximumCapacity = math.MaxInt>>1 + 1
	Numeral         = "0123456789"
	LowwerLetters   = "abcdefghijklmnopqrstuvwxyz"
	UpperLetters    = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	Letters         = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
	SymbolChars     = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
)

Functions

func RandBool

func RandBool() bool

RandBool generates a random boolean value (true or false).

func RandBoolSlice

func RandBoolSlice(length int) []bool

RandBoolSlice generates a random boolean slice of specified length.

func RandBytes

func RandBytes(length int) []byte

RandBytes generate random byte slice. Play: https://go.dev/play/p/EkiLESeXf8d

func RandFloat

func RandFloat(min, max float64, precision int) float64

RandFloat generate random float64 number between [min, max) with specific precision.

func RandFloats

func RandFloats(n int, min, max float64, precision int) []float64

RandFloats generate a slice of random float64 numbers of length n that do not repeat.

func RandInt

func RandInt(min, max int) int

RandInt generate random int between [min, max).

func RandIntSlice

func RandIntSlice(length, min, max int) []int

RandIntSlice generates a slice of random integers. The generated integers are between min and max (exclusive).

func RandLower

func RandLower(length int) string

RandLower generate a random lower case string of specified length.

func RandNumeral

func RandNumeral(length int) string

RandNumeral generate a random numeral string of specified length.

func RandNumeralOrLetter

func RandNumeralOrLetter(length int) string

RandNumeralOrLetter generate a random numeral or alpha string of specified length.

func RandString

func RandString(length int) string

RandString generate random alpha string of specified length.

func RandStringSlice

func RandStringSlice(charset string, sliceLen, strLen int) []string

RandString generate a slice of random string of length strLen based on charset. chartset should be one of the following: random.Numeral, random.LowwerLetters, random.UpperLetters random.Letters, random.SymbolChars, random.AllChars. or a combination of them.

func RandSymbolChar

func RandSymbolChar(length int) string

RandSymbolChar generate a random symbol char of specified length. symbol chars: !@#$%^&*()_+-=[]{}|;':\",./<>?.

func RandUniqueIntSlice

func RandUniqueIntSlice(n, min, max int) []int

RandUniqueIntSlice generate a slice of random int of length n that do not repeat.

func RandUpper

func RandUpper(length int) string

RandUpper generate a random upper case string of specified length.

func UUIdV4

func UUIdV4() (string, error)

UUIdV4 generate a random UUID of version 4 according to RFC 4122.