beAtMost method

void beAtMost(
  1. num max, [
  2. String? errorMessage
])

Instructs NumberMust to make sure the given number is not bigger than max.

Implementation

void beAtMost(num max, [String? errorMessage]) {
  _validators.add((value) {
    if (value == null || value > max)
      return errorMessage ?? 'Number is larger than $max.';
    return '';
  });
}