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angularjsHow do I use AngularJS and JavaScript together to develop software?

AngularJS is a JavaScript-based open-source front-end web application framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications. It aims to simplify both the development and the testing of such applications by providing a framework for client-side model–view–controller (MVC) and model–view–viewmodel (MVVM) architectures, along with components commonly used in rich Internet applications.

JavaScript is a high-level, interpreted programming language that conforms to the ECMAScript specification. It is a language that is also characterized as dynamic, weakly typed, prototype-based and multi-paradigm.

AngularJS and JavaScript can be used together to develop software. For example, the following code block uses AngularJS directives to render a simple HTML page with a button that, when clicked, will display a message using JavaScript:

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
    <div ng-app="myApp" ng-controller="myCtrl">
      <button ng-click="myFunc()">Click me!</button>
      var app = angular.module('myApp', []);
      app.controller('myCtrl', function($scope) {
        $scope.message = "";
        $scope.myFunc = function() {
          $scope.message = "Hello World!";

Output example

When the button is clicked, the message "Hello World!" is displayed.

The code block consists of the following parts:

  1. The <script> tag with the src attribute pointing to the AngularJS library. This is used to include the AngularJS library in the HTML page.

  2. The <div> tag with the ng-app and ng-controller attributes. This is used to define the scope of the AngularJS application and the controller function.

  3. The <button> tag with the ng-click attribute. This is used to bind a click event to the button, which will call the myFunc() function when clicked.

  4. The <p> tag with the {{message}} expression. This is used to display the value of the message variable.

  5. The <script> tag containing the myApp module and myCtrl controller function. The myFunc() function is defined inside the controller function, and it is used to set the value of the message variable when the button is clicked.

Helpful links

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