code: function (value) {
          checkDisposed(this);
          if (this.isStopped) { return; }
          var now = this.scheduler.now();
          this.q.push({ interval: now, value: value });
          this._trim(now);
  
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            var observer = os[i];
            observer.onNext(value);
            observer.ensureActive();
          }
        }
docs: Notifies all subscribed observers about the arrival of the specified element in the sequence.
  @param {Mixed} value The value to send to all observers.