onlyNumbers property

String? onlyNumbers

Returns only the numbers from the String.

Example

String foo = '4*%^55/es4e5523nt1is';
String onyNumbers = foo.onlyNumbers; // returns '455455231'

Implementation

String? get onlyNumbers {
  if (this == null) return null;
  if (this!.isEmpty) return this;
  final regex = RegExp('([^0-9]+)');
  return this!.replaceAll(regex, '');
}