Angular 8 Tutorial

Angular 8 Introduction History and versions of Angular 8 Architecture of Angular 8 How to install Angular 8 and set-up it. Creating our first Angular 8 app Angular 8 app loading

Difference between Angular And react

Angular vs react

Angular 8 Advantages Disadvantage

Advantage and Disadvantage of Angular 8

Angular 8 file structure

Angular 8 file structure

Angular 8 components

Components of Angular 8

Angular 8 CLI Commands

All CLI commands of Angular

Angular 8 with Bootstrap

How to install bootstrap for Angular 8 Libraries of Angular 8

Angular 8 Routing

Routing in Angular 8

Angular 8 directives

Angular 8 Directives Angular 8 ngIf directive Angular 8 ngFor directive Angular 8 ngSwitch directive Angular 8 ngClass directive Angular 8 ngStyle directive

Angular 8 pipes

Angular 8 Pipes

Angular 8 databinding

Angular 8 Data binding Angular 8 Event binding Angular 8 Property binding Two-way data binding in Angular 8

String Interpolation In Angular 8

Angular 8 String interpolation

Angular 8 forms

Angular 8 Forms Data flow of forms in Angular 8 Creating forms in Angular 8 Testing and validation of forms in Angular 8

Error fixing in Angular 8

Error fixing in Angular 8

Dependency injection and services in Angular 8

Dependency injection services in Angular 8

Angular 8 Animations

Angular 8 Animations

Dynamic components in Angular 8

Dynamic components in Angular 8

Angular 8 Module

Angular 8 Module Deploying an angular 8 app

Introduction of unit testing in angular 8

Unit testing in angular 8

Observables in angular 8

Observables in angular 8

Angular 8 universal

Angular 8 universal

Angular 8 Changes and new features

New features and changes in Angular 8

Conclusion

Angular 8 Conclusion

AngularJS Shopping Cart Example

AngularJS

A framework for web-based applications is AngularJS. It enables you to utilise HTML as one's template language and increase HTML's syntax to represent the constituents of your application concisely and unambiguously. Data binding as well as dependency injection in AngularJS allow one to write a lot less code than you would normally. And because everything takes place inside the browser, every server architecture may work well with it.

It is common to use: to address the ambiguity between dynamic applications as well as static documents.

  • A library is a group of functions that may be used while creating web applications. As it deems appropriate, your code is in control and makes calls into the library. Consider jQuery.
  • Frameworks are specific web application implementations in which your code handles the specifics. Whenever the framework requires anything app-specific, it goes inside your code. The framework is in control. For instance, Durandal, Ember, etc.

Complete client-side solution:

It takes several different components to develop the user/client side of a webpage, and AngularJS is only one of them. It takes care of and organises all of the DOM and AJAX glue code you manually wrote in the past. Because of this, AngularJS has strong opinions on how to create applications. Although it has an opinion, it also works to ensure that it is merely a beginning point that can be readily altered. The following details are included with AngularJS out of the bucket:

  • Data-binding, fundamental formatting instructions, form validating, navigation, deep connecting, reusable components, and dependency injection are all part of a comprehensive set that you can use to construct CRUD apps.
  • Testability story -Unit testing, end-to-end testing and test harnesses are examples of testability.

What is a Shopping Cart?

On the website of an online store, a shopping cart is just a part of a software module that makes it easier to buy a particular item or service. It arranges the delivery of the customer's payment details to the retailer, payment gateway, and other entities in addition to accepting the customer's transaction.

Why Shopping Carts are Crucial

The finest shopping cart technology is crucial for your website since it bridges the gap between browsing and purchasing.

Those who are newly entering the market are probably not acquainted with the idea. Most individuals have probably bought something online several times in their life, particularly those who work in the e-commerce sector. However, the majority of customers do not completely appreciate the use and potential of shopping carts. Usually, a cart has three features in common:

  • It keeps track of product data.
  • It serves as a portal for managing orders, catalogues, and customers.
  • It displays product data, category information, and site information for users.

Here is another angle to consider the situation from The physical shopping carts we use at the retail outlet are comparable to the virtual ones, but the virtual one serves many more purposes. Additionally, information is sent to the bank through the shelves, the structure, the clearing sign, the accounting software, and sometimes the credit card reader.

Example of Shopping Cart using AngularJS

 

Designing a Cart Page

To create this page, we'll use Bootstrap. We'll include our Bootstrap-designed pages inside our AngularJS app as soon as it's finished. We won't go too deep into Bootstrap intricacies while creating the page, but we will concentrate on a few key elements.

Make an HTML page with the name index.html.

<!DOCTYPE html>

  <html lang="en">

  <head>

      <meta charset="utf-8">

      <meta http-equiv="X-UA-Compatible" content="IE=edge">

      <meta name="viewport" content="width=device-width, initial-scale=1">

      <title>Bootstrap Shop Cart</title>

      <!-- Bootstrap core CSS -->

      <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">

      <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>

      <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>

      <style>

          body {

              padding-top: 50px;

          }

          #divTotal{

              background-colour: green;

          }

          .affix{

              right: 0px;

          }

          .affix-top{

              right: 0px;

              position: fixed;

          }

      </style>

  </head>

  <body>

      <div class="container">

      </div>

  </body>

  </html>

Make a .row div within the. container div.

  <div class="row">

  </div>

 We'll need two columns on the index.html page. The first column will contain a pricing list of the products, and the second column will show the Total div. Now let us start by making the two columns.

<div class="col-xs-7 col-md-8 col-sm-8 col-lg-8">

  </div>

  <div class="col-xs-5 col-md-4 col-sm-4 col-lg-4">

  </div>

 Now let's add very few products and choices to the first column.

<div class=" panel panel-primary">

      <div class="panel-heading">

          <h3 class="panel-title">Panel title</h3>

      </div>

      <div class="panel-body">

          <div class="radio">

              <label>

                  <input type="radio" name="optradio">Option 1</label>

          </div>

          <div class="radio">

              <label>

                  <input type="radio" name="optradio">Option 1</label>

          </div>

          <div class="radio">

              <label>

                  <input type="radio" name="optradio">Option 1</label>

          </div>

      </div>

  </div>

 To add a few more things, repeat the aforementioned HTML code a few times in the initial column. Add the below HTML script to the second column to display the total cost of the chosen products.

<div class=" panel panel-primary">

      <div id="divTotal" class="panel-heading">

          <h3 class="panel-title">Total</h3>

      </div>

      <div class="panel-body">

          <h2>Rs. 100</h2>

      </div>

  </div>

  <div class="text-center">

      <a href="#/checkout" class="btnbtn-danger">Checkout <span class="glyphiconglyphicon-shopping-cart" aria-hidden="true"></span>

      </a>

  </div>

Navigate to index.html after saving the modifications. It should resemble:

AngularJS Shopping Cart Example

It seems fine. The Total div has to be corrected, however, so that it won't shift whenever the browser is scrolled. We're going to use the Affix Bootstrap Js module to address it.