maxLength static method

FormFieldValidator<String> maxLength({
  1. required int maxLength,
  2. required String message,
})

Fails when longer than maxLength. UValidators.maxLength(maxLength: 20, message: "Too long")

Implementation

static FormFieldValidator<String> maxLength({required int maxLength, required String message}) => (String? value) {
  if (value != null && value.length > maxLength) return message;
  return null;
};