Book Image

Learning jQuery - Fourth Edition - Fourth Edition

Book Image

Learning jQuery - Fourth Edition - Fourth Edition

Overview of this book

To build interesting, interactive sites, developers are turning to JavaScript libraries such as jQuery to automate common tasks and simplify complicated ones. Because many web developers have more experience with HTML and CSS than with JavaScript, the library's design lends itself to a quick start for designers with little programming experience. Experienced programmers will also be aided by its conceptual consistency. LearningjQuery - Fourth Edition is revised and updated version of jQuery. You will learn the basics of jQuery for adding interactions and animations to your pages. Even if previous attempts at writing JavaScript have left you baffled, this book will guide you past the pitfalls associated with AJAX, events, effects, and advanced JavaScript language features. Starting with an introduction to jQuery, you will first be shown how to write a functioning jQuery program in just three lines of code. Learn how to add impact to your actions through a set of simple visual effects and to create, copy, reassemble, and embellish content using jQuery's DOM modification methods. The book will take you through many detailed, real-world examples, and even equip you to extend the jQuery library itself with your own plug-ins.
Table of Contents (24 chapters)
Learning jQuery Fourth Edition
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Sorting and building rows with JSON


So far in this chapter, we have been moving in the direction of outputting more and more information from the server into HTML so that our client-side scripts can remain as lean and efficient as possible. Now let's consider a different scenario, one in which a whole new set of information is displayed when JavaScript is available. Increasingly, full-fledged web applications are relying on JavaScript to deliver content as well as manipulate it once it arrives. In our third table sorting example, we'll do the same.

We'll start by writing two functions: buildRow(), which builds the HTML for a single table row, and buildRows(), which uses $.map() to loop through all of the rows in the dataset, calling buildRow() for each one:

function buildRow(row) {
  var authors = [];
  $.each(row.authors, function(index, auth) {
    authors[index] = auth.first_name + ' ' + auth.last_name;
  });
  var html = '<tr>';
    html += '<td><img src="images/' + row...