var todo = Todo.get({id: 123}, function() {
   $scope.todo = todo;
});

Todo.get({id: 123}, function(todo) {
   $scope.todo = todo;
});

Todo.get({id: 123}).$promise.then(function(todo) {
   $scope.todo = todo;
});

var todo = Todo.get({id: 123});
todo.$promise.then(function() {
   $scope.todo = todo;
});

var el = document.querySelector( 'div.special' );
var $el = angular.element( el );

//delete an item in angular array, use the array's splice and indexOf methods:
$scope.persons.splice( $scope.persons.indexOf(person), 1 );
//or underscore way:
//1. _.without()
scope.newNodes = _.without($scope.nodes, _.findWhere($scope.nodes,
  {name: res}));

//2. _filter:
$scope.newNodes = _.filter($scope.nodes, function(node) {
  return !(node.name == res); });

//among many ways to prevent event click default:
<a href ng-click="doSomething(); $event.preventDefault();
  $event.stopPropagation();">An safe Click.</a>
// a directive way:
app.directive('a', [function() {
  return {
    restrict: 'E',
    link: function(scope, elem, attrs) {
      elem.bind('click', function(e){
        if (attrs.ngClick||attrs.href === ''||attrs.href == '#'){
          e.preventDefault();
          e.stopPropagation();
        }
      })
    }
  };
}])