angular.js - How to define such a getter in the controller

Question

The purpose is to get an attribute on the scope. However, this attribute is fetched asynchronously in the service and then synchronized to the scope. If I add this getter method to the html, why is it executed multiple times?~

曾经蜡笔没有小新 · Answer

Run the getter method in the callback after the request is completed, and put it after the data is synchronized to the scope