hasUppercase<E> static method

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

Validates that the string contains at least one uppercase letter.

StringRules.hasUppercase(error: 'Must contain uppercase letter')

Implementation

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