angularjs - How to watch an object property? -

i want have attribute directive can used this:

<div my-dir="{items:m.items, type:'0'}"></div>

in directive can turn object like:

function (scope, element, attributes, modelcontroller) {    var ops = $.extend({}, scope.$eval(attributes.mydir)); }

now m.items array. , somewhere down line ajax call replaces array new one. i'd watch this.

how can watch m.items or whatever typed in items property in attribute? should watch expression be?

you should able use scope.$watch watch attribute. angular invoke callback entire object when of values change.

function(scope, elem, attrs) {   scope.$watch(attrs.mydir, function(val) {     // new value, val.   }, true); }

anytime model changes (by typing in input) directive updates elements html in $watch.

edited answer: want include true last argument compare object values, not references. otherwise run digest more 10 times , exception.

Bradly