containsKey function

IValidator containsKey(
  1. String key
)

Implementation

IValidator containsKey(String key) =>
    isMap() &
    Validator((value) {
      return Result(
        isValid: value.containsKey(key),
  expectation: expectation('contains key "$key"', value, key, 'value.contains_missing'),
        value: value,
      );
    });