Book Image

KnockoutJS by Example

By : Adnan Jaswal
Book Image

KnockoutJS by Example

By: Adnan Jaswal

Overview of this book

KnockoutJS By Example is a project-based guide that introduces the key features and concepts of knockout.js. It helps you create an application skeleton and a Hello World application. You will develop a To-Do list application that aims to show the basic features of knockout.js in action, such as data binding and observables, following which you will develop a dynamic online customer registration form that captures and validates customer information. This book will further walk you through developing a customer banking portal, which demonstrates the use of knockout.js with components such as navigation bars, tabs, carousels, master details view, panels, forms, and wizards. You will also discover how to use token-based authentication and authorization to secure the customer banking portal, and move on to creating an editable products grid with CRUD operations. Finally, you will explore how to use the Google Maps API with knockout.js. KnockoutJS By Example will not only leave you with a basic understanding of knockout.js fundamentals but also take you through some of the advanced features. It will help you get a web application up and ready instantly.
Table of Contents (17 chapters)
KnockoutJS by Example
Credits
About the Author
Acknowledgment
About the Reviewers
www.PacktPub.com
Preface
Index

Deleting a product


The second feature of this application is about deleting a product from the products grid. To implement this feature, we will:

  • Update the products client module to add a method to send a request to the server to delete a product

  • Update the products grid module to add a method to delete a product

  • Update the view to add a new column to the grid that will contain a button for the delete action

Let's get started by updating the ProductsClient module. Open the ProductsClient module in the productsclient.js file and add a method to send an HTTP DELETE request to http://[host:port]/products/{id}. The method should expect the product model and a callback method as parameters. The callback method should get executed on successful response from the server. As used before to send the HTTP GET request, use the $.ajax() method provided by jQuery to send the HTTP DELETE request. Don't forget to add the method to the return statement of the ProductsClient module. Our implementation looks...