Function _qpChanged

packages/@ember/controller/index.ts:297–304

During `Route#setup` observers are created to invoke this method when any of the query params declared in `Controller#queryParams` property are changed. When invoked this method uses the currently active query param update delegate (see `Controller.prototype._qpDelegate` for details) an

(controller: any, _prop: string)

    @private
  */
  _qpChanged(controller: any, _prop: string) {
    let dotIndex = _prop.indexOf('.[]');
    let prop = dotIndex === -1 ? _prop : _prop.slice(0, dotIndex);

    let delegate = controller._qpDelegate;
    let value = get(controller, prop);
    delegate(prop, value);
  },
});

// NOTE: This doesn't actually extend EmberObject.