toDigitWithPlus static method

String toDigitWithPlus(
  1. String? value
)

Implementation

static String toDigitWithPlus(String? value) {
  String buffer = '';

  if (value != null) {
    for (String character in value.characters) {
      if (character == '+' || Validator.isDigit(character)) {
        buffer = '$buffer$character';
      }
    }
  }

  return buffer;
}