<!DOCTYPE HTML><HTMLLang= "en"><Head> <MetaCharSet= "UTF-8"> <title></title></Head><Body> <DivNg-app> <DivNg-controller= "Firstcontroller">{{Date}}</Div> </Div> <Scripttype= "Text/javascript"src= "App/index.js"></Script><Scripttype= "Text/javascript"src=".. /.. /vendor/angular/angularjs.js "></Script></Body></HTML>
varFirstcontroller =function($scope) {//$scope Scope //Declare a model$scope. Date =NewDate ();
//setinterval (function () { ////Although here changes, but does not trigger dirty check //$scope. Date = new Date (); //},1000)SetInterval (function() {$scope. $apply (function() {$scope. Date=NewDate (); }) },1000)};
Angular Dirty Check Policy:
-Does not dirty check all objects, when the object is bound to HTML, this object is added as a check object (Wetcher).
-Does not dirty check all the properties, also when the property is bound, this property will be listed as the Check property.
When the angular program is initialized, the properties of the bound object are added as listener objects (watcher), which means that an object is bound to n properties, adding N Watcher.
ANGULARJS[6]-$apply method in $scrope:
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