Bytes2String more effect but not safe.

Compact remove empty string element.

Contained check any element in arr contained by flag.

Contains check any element in arr equal to flag.

ContainsBy check any element in arr by fn.

ContainsChineseChar check str contains chinese char.

First return first element of string array.

HasPrefix check any element in arr has prefix.

HasSuffix check any element in arr has suffix.

Last return last element of string array.

Nth return the nth element.

RandomAlphabet return a random n length string of alphabet.

RandomAlphanumeric return a random n length string of alphanumeric.

RandomNumber return a random n length string of number.

ShortID generate short id.

String2Bytes more effect but not safe.