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  • Book Overview & Buying KnockoutJS by Example
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KnockoutJS by Example

KnockoutJS by Example

By : Adnan Jaswal
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KnockoutJS by Example

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 (11 chapters)
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10
Index

Chapter 4. Adding Validation to the Customer Registration Form

We developed a customer registration form in the previous chapter. While the registration form application demonstrated how to work with form fields, it is missing out on a basic requirement that is expected from most web forms—validation!

In this chapter, we will add validation to our customer registration form application. We will explore two different methods of validating the form data in our model: by using the Knockout extenders and Knockout validation plugin. The chapter will walk you through applying validation to the registration form using the Knockout validation plugin.

It is important to note that the validation we are talking about in this chapter happens at the client side or more specifically, in the browser. The data should also be validated at the server side, but there are some benefits of validating the data at the client side. The benefits are mostly to do with user experience and performance...

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