Today the market is flooded with web apps and its demand keeps on increasing every day. Within the web app development sphere, Single page applications are gaining the attention that allows businesses to stay ahead in the market.
With lots of tools and technologies making their way into the market, developing single-page applications is made easier. Within all the frameworks available, Angular comes as an ideal solution for businesses to develop single-page applications (SPAs).
Angular is developed by Google and is the best choice for businesses look to create single-page applications to scale your business well in the market.
Today a larger number of companies are continually looking to hire dedicated Angular developers to create elegant single-page applications. If you still have lots of doubts in mind regarding the steps to build single-page applications with Angular, this article is for you. Here, we will unfold easy steps to develop single-page applications using Angular.
About Angular
Angular is an entirely TypeScript-based JavaScript framework. Developed and maintained by Google, it enables the development of any web application, large or small.
Its customizable components, dependency injection, and data binding have helped web developers improve efficiency and performance.
Requirements to develop single-page applications using Angular
To get started with Angular Development Services to develop SPA, there are a few prerequisites to follow. To install Angular, you need to follow the following prerequisites:
| NodeJS active LTS |
The NPM package manager installs the Angular CLI. Angular developers use CLI to develop, scaffold, and maintain their apps.
| Npm install -g @angular/cli |
Before you begin, verify the version by running the command below.
| Ng – version |
Once you have run the command, give the app the following name,
| Ng new myapplication |
Once you have installed Angular, you can start building a single-page application.
Steps to Developing Single-Page Applications
Developing Single page applications using Angular may be challenging but by following the right steps and prompting the right code, you can end up creating elegant SPA. Let’s get started with the steps to develop:
Step 1: Creating a module
Modules are the building blocks of Angular apps, which follow the MVC architecture.
Var app = angular.module(‘myApp’,[]);
Step 2: Defining the controller
| app.controller(‘FirstController’, function($scope) {
$scope.message = ‘Hello from FirstController’; }); |
Step 3: Write HTML code to deploy the Angular script
As indicated in the ng-controller attribute, the same controller is specified in both modules and controllers created in the first step.
| <!doctype html>
<html ng-app=”myApp”> <head> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular.min.js“></script> </head> <body ng-controller=”FirstController”> <h1>{{message}}</h1> <script src=”app.js”></script> </body> </html> |
Step 4: Design the website’s HTML layout
To make all HTML files of all pages appear in the same layout, it is necessary to use the ng-view directive when creating the layout for the website.
| <!doctype html>
<html ng-app=”myApp”> <head> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular.min.js“></script> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular-route.min.js“></script> </head> <body> <div ng-view></div> <script src=”app.js”></script> </body> </html> |
Step 5: Configure Routes
Each route requires a template and a controller. It is necessary to handle exceptions when a user attempts to navigate to a nonexistent route. An “otherwise” function can redirect the user to the “/” route.
| var app = angular.module(‘myApp’, [‘ngRoute’]);
app.config(function($routeProvider) { $routeProvider .when(‘/’, { templateUrl: ‘pages/first.html,’ controller : ‘FirstController’ }) .when(‘/blog’, { templateUrl: ‘pages/second.html,’ controller : ‘SecondController.’ }) .when(‘/about’, { templateUrl: ‘pages/third.html,’ controller: ‘ThirdController’ }) .otherwise({redirectTo: ‘/’}); }); |
Step 6: Building controllers
The next crucial stage to developing world-class SPA using Angular is the moment to develop controllers. Below are some code to follow to develop SPA using Angular m:
| app.controller(‘FirstController’, function($scope) {
$scope.message = ‘Hello from FirstController’; }); app.controller(‘SecondController’, function($scope) { $scope.message = ‘Hello from SecondController’; }); app.controller(‘ThirdController’, function($scope) { $scope.message = ‘Hello from ThirdController’; }); Step 7: Configuring the HTML Pages first.html <h1>First</h1> <h3>{{message}}</h3> second.html <h1>Second</h1> <h3>{{message}}</h3> third.html <h1>Third</h1> <h3>{{message}}</h3> |
Step 8: Add Links to Those HTML Pages
| <!doctype html>
<html ng-app=”myApp”> <head> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular.min.js“></script> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular-route.min.js“></script> </head> <body> <a href=”#/”>First</a> <a href=”#/second”>Second</a> <a href=”#/third”>Third</a> <div ng-view></div> <script src=”app.js”></script> </body> </html> |
Step 9: Include the HTML of the Above Pages in the Index.html file with the Script Tag
Now comes the final step to seamlessly developing SPA using Angular. It’s time to integrate the HTML of the above pages to index html files. Following the below code, you can perform the needful.
| <!doctype html>
<html ng-app=”myApp”> <head> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular.min.js“></script> <script src=”https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular-route.min.js“></script> </head> <body> <script type=”text/ng-template” id=”pages/first.html”> <h1>First</h1> <h3>{{message}}</h3> </script> <script type=”text/ng-template” id=”pages/second.html”> <h1>Second</h1> <h3>{{message}}</h3> </script> <script type=”text/ng-template” id=”pages/third.html”> <h1>Third</h1> <h3>{{message}}</h3> </script> <a href=”#/”>First</a> <a href=”#/second”>Second</a> <a href=”#/third”>Third</a> <div ng-view></div> <script src=”app.js”></script> </body> </html> |
There you have it! By following the above steps, Angular can be used to create one-page applications and simplify many other complicated tasks.
Conclusion
A single-page application has many advantages. They are faster to load and offer a better user experience. It is also simple to deploy them in production and to version them. If you want to develop single applications for your business, choosing Angular Development Company is a reliable choice. They will help you deliver top notch applications that drive customers to your business.
