Angular injector sample from docs
HTML
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.js"></script>
JavaScript
$(document).ready(function () {
var $div = $('<h1>{{content}}</h1>');
$(document.body).append($div);
angular.element(document.body).injector().invoke(function($compile){
var scope = angular.element($div).scope();
scope.content = 'Hello';
$compile($div)(scope);
scope.$digest();
});
})