ng app debugging

ng-helpers.js

if (jerry) { alert("already added ngHelpers"); } // 

var jerry = (function(){
    var count = 0;

    var unregisterDigestWatch = function() {}; // init empty
    function registerDigestWatch(scope) {
        scope = scope || angular.element(document).scope();
        unregisterDigestWatch = scope.$watch(function() { 
            var c = count++;
            console.log("Digest " + c +" START...");
            var start = performance.now();
            scope.$$postDigest(function() { 
                console.log("Digest " + c + " stoped " + (performance.now() - start)); 
            });
        });
    }

    function steadyDigestTimer() {
        var scope = angular.element(document);
        scope.injector().invoke( function($rootScope) { 
            var a = performance.now(); 
            $rootScope.$apply(); 
            console.log(performance.now() - a + " ms");
        });
    }

    function getWatchers(root) {
        root = angular.element(root || document.documentElement);
        var watcherCount = 0;
     
        function getElemWatchers(element) {
            var isolateWatchers = getWatchersFromScope(element.data().$isolateScope);
            var scopeWatchers = getWatchersFromScope(element.data().$scope);
            var watchers = scopeWatchers.concat(isolateWatchers);
            angular.forEach(element.children(), function (childElement) {
              watchers = watchers.concat(getElemWatchers(angular.element(childElement)));
            });
            return watchers;
        }
      
        function getWatchersFromScope(scope) {
            if (scope) {
                return scope.$$watchers || [];
            } else {
                return [];
            }
        }
     
        return getElemWatchers(root);
    }
    

    return {
        registerDigestWatch: registerDigestWatch,
        unregisterDigestWatch: function() { unregisterDigestWatch(); },
        resetDigestCount: function() { count = 0; },
        //registerDigest: registerDigest
        steadyDigestTimer: steadyDigestTimer,
        getWatchCount: function(scope) { getWatchers(scope).length; }
    };      
})();
jerry.registerDigestWatch();
jerry.steadyDigestTimer();