CODEWITHSUNDEEP
javascriptangularjs
Dino
Dino

Reputation: 75

What are the advantages of using a function which calls it self to declare a controller in angularjs

What are the advantages of using a function which calls it self to declare a controller in angularjs?

I've seen it in a few projects of angularjs and I was wondering what are the advantages?

for example:

(function () {
  'use strict';

  angular.module('app')
   .controller( 'MainCtrl', ['$scope',
    function MainCtrl($scope) {
       //...
    });
}());

also why did they declare the 'use strict' inside the function? is there any advantage of such things?

Upvotes: 0

Views: 57

Answers (1)

Fen1kz
Fen1kz

Reputation: 1110

short: If you write 'use strict' in non-self-executing function -- it possibly harm other files if you concatenate them.

long: Because plain 'use strict' applies to file, if you will minimize and concat all project's javascript -- this 'use strict' will apply to all your minified file, which is bad.

'use strict' declared in function applies only to this function and don't break anything outside.

for self-executing benefits -- check other answers:

What is the purpose of a self executing function in javascript?

What is the benefit of assigning a self executing anonymous function to a variable in javascript?

Upvotes: 3

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