CODEWITHSUNDEEP
ionic-framework
Riemann
Riemann

Reputation: 135

Difference between $window and window in Ionicframework

What is the exact difference between $window and window in ionic-framework?

For example, in the localstorage tutorial at learn.ionicframework.com/formulas/localstorage/ both $window and window are used.

Upvotes: 12

Views: 9494

Answers (2)

Reto
Reto

Reputation: 3141

$window is an Angular service wrapping the global variable window, mainly to make it possible to mock it for unit tests:

A reference to the browser's window object. While window is globally available in JavaScript, it causes testability problems, because it is a global variable. In angular we always refer to it through the $window service, so it may be overridden, removed or mocked for testing.

If you look at the source, you'll see that there is not much more behind it:

function $WindowProvider() {
  this.$get = valueFn(window);
}

Upvotes: 18

Nielarshi
Nielarshi

Reputation: 1136

Both are not related to ionic-framework as such.

window is a browser object which represents the window containing the DOM. 'document' that we use for javascript is a property of window object window.document.

refer this browser window object

where $window is a service created in angular which can be injected to any service or controller written in angular again to make use of its APIs.

refer to this for $window

$window

Upvotes: 0

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