BytesToString converts byte slice to string without a memory allocation.

GenerateUUID creates a new random UUID4 and returns it as a string or panics.

get locale language.

generate random string by len.

Reverse reverses s.

StringToBytes converts string to byte slice without a memory allocation.

strip content-type application/json;charset=utf-8.

Substr returns runes between start and stop [start, stop) regardless of the chars are ascii or utf8.