Can I debounce or throttle a watched <input> in AngularJS using _lodash?

Question

I have the following which does a watch on an field that\'s bound to $scope.id. Every time the input field value changes the watch function gets e

Answer 1

Is that what are you looking for?

$scope.$watch("id", _.debounce(function (id) {
    // Code that does something based on $scope.id
    // This code will be invoked after 1 second from the last time 'id' has changed.
}, 1000));

Note, however, that if you want to change $scope inside that function you should wrap it $scope.$apply(...) as unless _.debounce function uses $timeout internally (which as far as I understand it doesn't do) Angular will not be aware of the changes you did on the $scope.

UPDATE

As to the updated question - yes you need to wrap the entire callback function body with

$scope.$apply():

$scope.$watch("id", _.debounce(function (id) {
    // This code will be invoked after 1 second from the last time 'id' has changed.
    $scope.$apply(function(){
        // Code that does something based on $scope.id
    })
}, 1000));