Build a Single Page Application SPA Using AngularJS:
In this tutorial, we will get to know more about developing a single page application using AngularJS.
AngularJS is an open-source web application framework based on JavaScript.
It is maintained by Google Corporation and a big community. AngularJS is an answer to the various drawbacks that are encountered to formulate single-page applications.
Advantages of Single Page Applications
- Improved user experience.
- Web pages refresh faster as less bandwidth is being used.
- The deployment of the application – index.html, CSS bundle, and javascript bundle – in production becomes easier.
- Code splitting can be done to split the bundles into multiple parts.
How to Develop a Single Page Application Using AngularJS?
Nowadays, there are many javascript applications that are available in the market like ember.js, backbone.js, etc. But still, a lot of web applications incorporate AngularJS in their development to create SPAs.
Below are the various steps involved in developing a SPA using AngularJS.
Step 1: Create a Module
var app = angular.module("firstApp", ["ngRoute"]);
Step 2: Use AngularJS and AngularJS`s routing capabilities to add different views to our SPA
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular-route.js"></script>
Step 3: Create an HTML layout for the website (index.html)
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular-route.js"></script>
<script src="spa.js"></script>
</head>
<body ng-app="firstApp">
<a href="#">Home</a>
<a href="#!blog">Blog</a>
<a href="#!about">About</a>
<div ng-view></div>
</body>
</html>
Step 4: Use $routeProvider service from ngRoute module to configure the navigation to different views (spa.js)
var app = angular.module('firstApp', ['ngRoute']);
app.config(function($routeProvider) {
$routeProvider
.when('/', {
templateUrl : 'home.html',
controller : 'homeCtrl'
})
.when('/blog', {
templateUrl : 'blog.html',
controller : 'blogCtrl'
})
.when('/about', {
templateUrl : 'about.html',
controller : 'aboutCtrl'
})
.otherwise({redirectTo: '/'});
});
Step 5: Build controllers for every route specified in $routeProvider (spa.js)
app.controller('homeCtrl', function($scope) {
$scope.message = 'Home Page';
});
app.controller('blogCtrl', function($scope) {
$scope.message = 'Blog Page';
});
app.controller('aboutCtrl', function($scope) {
$scope.message = 'About Page';
});
Step 6: Configure the pages
home.html
<h1>Home</h1>
<h3>{{message}}</h3>
blog.html
<h1>Blog</h1>
<h3>{{message}}</h3>
about.html
<h1>About</h1>
<h3>{{message}}</h3>
If you have any query or suggestions, feel free to ask me via the comment section below.
Very interesting and it caught my attention. Bookmarking your article which will probably be my guide. Thank you very much.
Well written! You have covered many points about framework. Please keep it up and keep us updated with the latest information. Thanks a lot!
by cloudi5