ngEnter directive if you can use submit form(https://twitter.com/ririlepanda)

ngEnter.js

app.directive('ngEnter', () => ($scope, $elm, $attrs) => {
    $elm.bind('keydown keypress', evt => {
        if ( evt.which === 13 ) {
            $scope.$apply(() => $scope.$eval($attrs.ngEnter));
            evt.preventDefault();
        }
    });
});