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Learning jQuery 3

You're reading from Learning jQuery 3 Interactive front-end website development

Product type Paperback

Published in May 2017

Publisher Packt

ISBN-13 9781785882982

Length 448 pages

Edition 5th Edition

Languages

JavaScript

Tools

jQuery

Concepts

Front End Web Development

Authors (2):

Jonathan Chaffer

Adam Boduch

View More author details

Table of Contents (16) Chapters

Preface

1. Getting Started FREE CHAPTER

2. Selecting Elements

3. Handling Events

4. Styling and Animating

5. Manipulating the DOM

6. Sending Data with Ajax

7. Using Plugins

8. Developing Plugins

9. Advanced Selectors and Traversing

10. Advanced Events

11. Advanced Effects

12. Advanced DOM Manipulation

13. Advanced Ajax

14. Appnedix A – Testing JavaScript with QUnit

Appendix B – Quick Reference

Using the jqXHR object

When an Ajax request is made, jQuery determines the best mechanism available for retrieving the data. This transport could be the standard XMLHttpRequest object, the Microsoft ActiveX XMLHTTP object, or a <script> tag.

Because the transport used can vary from request to request, we need a common interface in order to interact with the communication. The jqXHR object provides this interface for us. It is a wrapper for the XMLHttpRequest object when that transport is used, and in other cases, it simulates XMLHttpRequest as best it can. Among the properties and methods it exposes are:

.responseText or .responseXML, containing the returned data
.status and .statusText, containing a status code and description
.setRequestHeader() to manipulate the HTTP headers sent with the request
.abort() to prematurely halt the transaction

This jqXHR object is returned from all of jQuery's Ajax...

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Authors (1)

Jonathan Chaffer

Jonathan Chaffer

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