InArray checks if a string is in a string array.

Is returns true if the value matches the pattern.

IsUuid returns true if the string is a valid UUID.

Len returns the length of a string.

Md5 returns the md5 hash of a string.

Random returns a random string with the specified length.

Replace replaces all occurrences of one substring with another.

Reverse returns a string with its characters in reverse order.

Sha1 returns the sha1 hash of a string.

Shuffle returns a string with its characters in random order.