size<T> static method

FormeValidator<T> size<T>({
  1. String errorText = '',
  2. int? min,
  3. int? max,
})

when valid

  1. value is null
  2. min == null && max == null
  3. value's length is > min and < max

Implementation

static FormeValidator<T> size<T>(
    {String errorText = '', int? min, int? max}) {
  return (f, T v) {
    if (v == null) {
      return null;
    }
    if (min == null && max == null) {
      return null;
    }

    return _validateSize(_getLength(v), min, max, errorText: errorText);
  };
}