What is the benefit of wrapping angular controller/service/factory declarations in an anonymous function [duplicate]

问题

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What is the purpose of a self executing function in javascript? (16 answers)

Closed 4 years ago.

I've seen a few developers tout 'best practices' when wrapping angular components in anonymous functions. For example:

(function(){
     angular.controller('MyCtrl', [function(){
         // ... controller logic
     }]);
})()

What is the benefit of wrapping angularjs components in anonymous functions, if at all any?

回答1:

This is an immediately invoked function.

(function(){

})()

The above will declare an anonymous function that will be called immediately.

来源：https://stackoverflow.com/questions/31820566/what-is-the-benefit-of-wrapping-angular-controller-service-factory-declarations