random

func RandString ¶

func RandString(n int, sources ...string) (string, error)

RandString returns a new string. if `source` is empty, the string is automatically generated from `defaultLetters`, otherwise its is generated from the `source` string, eg:

1. automatically generated from default letters str, err := RandString(5) if err != nil { panic(err) // panic or logging }

2. specify the source string str, err := RandString(10, "abcdef") if err != nil { log.Fatal(err) }