containsKey function

IValidator containsKey(
  1. String key, {
  2. String? message,
})

Validator that checks if a map contains a specific key.

Implementation

IValidator containsKey(String key, {String? message}) => _mapPredicateValidator(
      test: (m) => m.containsKey(key),
      code: ExpectationCodes.valueContainsMissing,
      message: message ?? 'contains key "$key"',
    );