containsKey method

Future<bool> containsKey({
  1. required String key,
  2. IOSOptions? iOptions = IOSOptions.defaultOptions,
  3. AndroidOptions? aOptions,
  4. LinuxOptions? lOptions,
})

Returns true if the storage contains the given key.

key shouldn't be null. iOptions optional iOS options aOptions optional Android options lOptions optional Linux options Can throw a PlatformException.

Implementation

Future<bool> containsKey({
  required String key,
  IOSOptions? iOptions = IOSOptions.defaultOptions,
  AndroidOptions? aOptions,
  LinuxOptions? lOptions,
}) async {
  final String? value =
      await read(key: key, iOptions: iOptions, aOptions: aOptions);
  return value != null;
}