Added AngularJS Controller (#27786)

guide/english/angularjs/angularjs-controller/index.md

@@ -0,0 +1,31 @@
+---
+title: AngularJS Controller
+---
+# AngularJS Controller
+------
+Controllers are the behavior behind the DOM elements. AngularJS lets you express the behavior in a clean readable form without the usual boilerplate of updating the DOM, registering callbacks or watching model changes. (more info @ [https://angularjs.org/](https://angularjs.org/)
+
+Example
+```html
+<div ng-app="myApp" ng-controller="myCtrl">
+
+First Name: <input type="text" ng-model="firstName"><br>
+Last Name: <input type="text" ng-model="lastName"><br>
+<br>
+Full Name: {{firstName + " " + lastName}}
+
+</div>
+
+<script>
+var app = angular.module('myApp', []);
+app.controller('myCtrl', function($scope) {
+    $scope.firstName = "John";
+    $scope.lastName = "Doe";
+});
+</script>
+```
+The ng-controller directive defines the application controller.
+
+A controller is a JavaScript Object, created by a standard JavaScript object constructor.
+
+More info @[https://www.w3schools.com/angular/angular_controllers.asp](https://www.w3schools.com/angular/angular_controllers.asp)