Angular csrf token

One way to implement CSRF token in angular is to put csrf token in a meta tag and pull it from angular as a constant.

JS:

var app = angular.module('home', [])
.constant('CSRF_TOKEN', csrftoken)
var csrftoken =  (function() {
    // not need Jquery for doing that
    var metas = window.document.getElementsByTagName('meta');
    // finding one has csrf token
    for(var i=0 ; i < metas.length ; i++) {
        if ( metas[i].name === "csrf-token") {
            return  metas[i].content;
        }
    }
})();

HTML:

<meta content="{{csrf_token()}}" name="csrf-token"/>