Notes on Angular JS

A module is a container for the different parts of the application like a controller, services, filters, directives, etc. It is treated as a main() method. All the dependencies of applications are generally defined in modules only. A module is created using an angular object’s module() method. For example: var app = angular.module(‘myApp’, []); In … Read more

Services are objects that can be used to store and share data across the application. AngularJS offers many built-in services, and each of them is responsible for a specific task. They are always used with the prefix $ symbol. Some of the important services used in any AngularJS application are as follows: $http- It is … Read more

AngularJS controllers are used for: Setting the initial state of the $scope object Adding behavior to the $scope object n AngularJS, controllers are an essential part of the framework and serve several purposes: Organizing Logic: Controllers help in organizing and encapsulating the application logic. They are responsible for handling user input, managing the application state, … Read more

Controllers are JavaScript functions which are used to provide data and logic to HTML UI. It acts as an interface between Server and HTML UI. Each controller accepts $scope as a parameter which refers to the application/module that controller is going to control. For example: var app = angular.module(‘myApp’, []); app.controller(‘myCtrl’, function($scope) { $scope.firstName = … Read more

Directives are the markers on DOM element which are used to specify behavior on that DOM element. All AngularJS directives start with the word “ng”. There are many in-built directives in AngularJS such as “ng-app”, “ng-init”, “ng-model”, “ng-bind”, “ng-repeat” etc. ng-app The ng-app directive is the most important directive for Angular applications. It is used … Read more