fromCharSet method
Generated a random string from the given string of chracters.
Example:
fromCharSet('ABCDEFGHIJKLMONPQESTUVWXYZ!?@#$$%');
Implementation
String fromCharSet(String charSet, int length) =>
String.fromCharCodes(Iterable.generate(
length, (_) => charSet.codeUnitAt(_random.nextInt(charSet.length))));