Angularjs watch for change in parent scope
angularjs, javascript, scope
Solution
You should have the data property on your child scope, scopes use prototypal inheritance between parent and child scopes.
Also, the first argument the $watch method expects is an expression or a function to evaluate and not a value from a variable., So you should send that instead.
Problem
I'm writing a directive and I need to watch the parent scope for a change. Not sure if I'm doing this the preferred way, but its not working with the following code: ``` scope.$watch(scope.$parent.data.overlaytype,function() { console.log("Change Detected..."); }) ``` This it logged on window load, but never again, even when overlaytype is changed. How can I watch `overlaytype` for a change? Edit: here is the entire Directive. Not entirely sure why I'm getting a child scope ``` /* Center overlays vertically directive */ aw.directive('center',function($window){ return { restrict : "A", link : function(scope,elem,attrs){ var resize = function() { var winHeight = $window.innerHeight - 90, overlayHeight = elem[0].offsetHeight, diff = (winHeight - overlayHeight) / 2; elem.css('top',diff+"px"); }; var watchForChange = function() { return scope.$parent.data.overlaytype; } scope.$watch(watchForChange,function() { $window.setTimeout(function() { resize(); }, 1); }) angular.element($window).bind('resize',function(e){ console.log(scope.$parent.data.overlaytype) resize(); }); } }; }); ```