将代码包装成封闭是一个好习惯吗？-Iswrappingcodeintoaclosureagoodhabit?

I a new to Angular and I just completed a tutorial from Code School for beginners in Angular. Now in the second video the instructor of the course says that we are going to wrap our whole application code into a closure. The link to the video is below. He says this somewhere at 00:30. Now why is it a good practice to wrap our code into a closure?

我是Angular的新手，我刚刚为Angular的初学者完成了Code School的教程。现在在第二个视频中，课程的讲师说我们将整个应用程序代码包装成一个闭包。视频链接如下。他在00:30某处说。现在为什么将代码封装到闭包中是一个好习惯？

Link to the video

链接到视频

1 个解决方案