toDigitWithLetter static method

String? toDigitWithLetter(
  1. String? value
)

Converts a string to contain only digits and letters.

Example: 'abc123!@#' -> 'abc123'

Implementation

static String? toDigitWithLetter(String? value) {
  if (value == null || value.isEmpty) return null;
  String buffer = '';
  for (String character in value.characters) {
    if (Validator.isDigit(character) || Validator.isLetter(character)) {
      buffer = '$buffer$character';
    }
  }
  return buffer;
}