onTimer_() {
    this.timerId_ = null;

    if (this.shouldFire_) {
      this.shouldFire_ = false;
      this.doAction_();
    }
  }
/**
   * Handler for the timer to fire the throttle
   * @private
   */
Handler for the timer to fire the throttle
@private
Handler for the timer to fire the throttle @private
onTimer_() {
    this.timerId_ = null;
    if (this.shouldFire_) {
      this.shouldFire_ = false;
      this.doAction_();
    }
  }
onTimer_ ( ) { this . timerId_ = null ; if ( this . shouldFire_ ) { this . shouldFire_ = false ; this . doAction_ ( ) ; } }
Handler for the timer to fire the throttle
 @private
Handler for the timer to fire the throttle @private