angular.element(document.querySelector('main > div')).trigger({type: 'keydown', which: 13}, {type: 'keydown', which: 17});
var myApp = angular.module('myApp', []);
myApp.controller('Ctrl', function($scope) {
$scope.keyBuffer = [];
function arrays_equal(a,b) { return !(a<b || b<a); }
$scope.down = function(e) {
$scope.keyBuffer.push(e.keyCode);
var upUp = [38, 38, 40, 40, 37, 39, 37, 39, 66, 65];
if (arrays_equal(upUp, $scope.keyBuffer)) {
alert('thats it!');
}
};
});<body ng-controller="Ctrl" ng-keydown="down($event)">