Method _evalScriptOn

lib/queue.js:901–908

* Evaluate the named script on the given commandable object, which might be a * RedisClient or a Batch or Multi object. This exists to facilitate * command pipelining. * * @modifies {arguments}

(commandable, args)

   * @modifies {arguments}
   */
  _evalScriptOn(commandable, args) {
    // Precondition: Queue is ready - otherwise lua.shas may not have loaded.
    args[0] = lua.shas[args[0]];
    return helpers.callAsync((done) => {
      args.push(done);
      commandable.evalsha.apply(commandable, args);
    });
  }

  /**
   * Evaluate the named script, return a promise with its results.