alphanumeric<E> static method

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

Validates that the string contains only letters and digits.

StringRules.alphanumeric(error: 'Must be alphanumeric')

Implementation

static Rule<String, E> alphanumeric<E>({required E error}) => PredicateRule(
      predicate: (value) => _alphanumericRegex.hasMatch(value),
      error: error,
    );