oneLowerCase static method

ValidationRule oneLowerCase({
  1. String message = 'Must contain at least one lowercase letter',
})

Implementation

static ValidationRule oneLowerCase({
  String message = 'Must contain at least one lowercase letter',
}) {
  return ValidationRule(
    (value) => RegExp(r'[a-z]').hasMatch(value ?? '') ? null : '',
    message,
  );
}