containsKey method
Future<bool>
containsKey({
- required String key,
- IOSOptions? iOptions = IOSOptions.defaultOptions,
- AndroidOptions? aOptions,
- 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;
}