zScore method

Future<double?> zScore(
  1. String key,
  2. String member
)

ZSCORE key member

Returns the score of member in the sorted set at key.

Implementation

Future<double?> zScore(String key, String member) async {
  final cmd = <String>['ZSCORE', key, member];
  final result = await execute(cmd);
  if (result == null) return null;
  return double.parse(result.toString());
}