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  • Book Overview & Buying jQuery 2.0 Development Cookbook
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jQuery 2.0 Development Cookbook

jQuery 2.0 Development Cookbook

By : Leon Revill
4.2 (12)
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jQuery 2.0 Development Cookbook

jQuery 2.0 Development Cookbook

4.2 (12)
By: Leon Revill

Overview of this book

Taking a recipe-based approach, this book presents numerous practical examples that you can use directly in your applications. The book covers the essential issues you will face while developing your web applications and gives you solutions to them. The recipes in this book are written in a manner that rapidly takes you from beginner to expert level. This book is for web developers of all skill levels. Although some knowledge of JavaScript, HTML, and CSS is required, this Cookbook will teach jQuery newcomers all the basics required to move on to the more complex examples of this book, which will benefit the more seasoned jQuery developer. If you want to learn how to create modern website features quickly, using best practice techniques, then this book is for you.
Table of Contents (12 chapters)
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11
Index

Detecting key press events on inputs


jQuery provides three event functions that allow the jQuery developer to determine what key a user is pressing, and when and how the user is pressing it. The .keyup() function is an event handler that can be attached to an input and will be fired once the pressed key has been fully released; likewise, .keydown()will be fired once the key has been fully pressed. The third available event handler is .keypress(), which is fired instantly when a key is pressed.

These methods allow the developer to provide powerful client-side validation or to provide the user with simple features such as triggering a form submission when the Enter key is pressed.

Getting ready

Create a blank HTML file named recipe-5.html which we can use for this recipe.

How to do it…

Use a variety of event handlers to detect user key press events by performing the following steps:

  1. Add the following HTML code to the web page you have just created. Update the reference to the jQuery library to ensure...

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