IsUpperCase constructor

Implementation

IsUpperCase()
  : super(
      methodName: "isUpperCase",
      arity: 0,
      targetType: NativeMethodTarget.string,
      function: (target, _, _) {
        //regex to check if every letter in the string is uppercase, ignoring non-alphabetic characters
        final regex = RegExp(r"^[A-Z]*$");
        return regex.hasMatch(target);
      },
    );