/
randutil.go
42 lines (35 loc) · 894 Bytes
/
randutil.go
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package utils
import (
"github.com/gofrs/uuid"
"math/rand"
"time"
)
func GetRandomString(l int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyz"
return GenerateRandString(str, l)
}
func GetRandomCaseString(l int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%&_="
return GenerateRandString(str, l)
}
func GetRandomHexString(l int) string {
str := "0123456789abcdef"
return GenerateRandString(str, l)
}
func GetRandomIntString(l int) string {
str := "0123456789"
return GenerateRandString(str, l)
}
func GenerateRandString(source string, l int) string {
bytes := []byte(source)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < l; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
func GetUUIDString() string {
u, _ := uuid.NewV4()
return u.String()
}