hasLowercase<E> static method

Rule<String, E> hasLowercase<E>({
  1. required E error,
})

Validates that the string contains at least one lowercase letter.

StringRules.hasLowercase(error: 'Must contain lowercase letter')

Implementation

static Rule<String, E> hasLowercase<E>({required E error}) => PredicateRule(
      predicate: (value) => value.contains(RegExp(r'[a-z]')),
      error: error,
    );