AngularJS - please explain the line

Question

What exactly does the "inject" line do?:

function PhotoGalleryCtrl($route, $xhr) {
}

PhotoGalleryCtrl.$inject = ['$route', '$xhr'];

Are $route and $xhr predefined somewhere? Where to read about them?

Who said that the PhotoGalleryCtrl function has the .$inject method?

jaime · Accepted Answer · 2012-12-03 12:54:15Z

2

Both $route and $xhr are native AngularJS services, the latter has been replaced by $http in the most recent versions of AngularJS. They are part of the ng module.

You can read about them here

$inject tells angular to make available those services to the controller PhotoGalleryCtrl

Dependency injection and modules are core features of Angular. They both minimize global state and allow for better unit testing, you can read more about them here

answered Dec 3, 2012 at 12:54

jaime

42k10 gold badges85 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

AngularJS - please explain the line

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related