Book Image

jQuery HOTSHOT

By : Dan Wellman
Book Image

jQuery HOTSHOT

By: Dan Wellman

Overview of this book

jQuery is used by millions of people to write JavaScript more easily and more quickly. It has become the standard tool for web developers and designers to add dynamic, interactive elements to their sites, smoothing out browser inconsistencies and reducing costly development time.jQuery Hotshot walks you step by step through 10 projects designed to familiarise you with the jQuery library and related technologies. Each project focuses on a particular subject or section of the API, but also looks at something related, like jQuery's official templates, or an HTML5 feature like localStorage. Build your knowledge of jQuery and related technologies.Learn a large swathe of the API, up to and including jQuery 1.9, by completing the ten individual projects covered in the book. Some of the projects that we'll work through over the course of this book include a drag-and-drop puzzle game, a browser extension, a multi-file drag-and-drop uploader, an infinite scroller, a sortable table, and a heat map. Learn which jQuery methods and techniques to use in which situations with jQuery Hotshots.
Table of Contents (18 chapters)
jQuery HOTSHOT
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Sorting the table


In this task we can change the <th> elements so that they are clickable. When one of them is clicked, we can then sort the table rows by the column that was clicked.

Engage Thrusters

First of all we can update the <tr>and the <th> elements that it contains in sortable-table.html:

<tr data-bind="click: sort">
    <th data-bind="css: nameOrder">Name</th>
    <th data-bind="css: numberOrder">Atomic Number</th>
    <th data-bind="css: symbolOrder">Symbol</th>
    <th data-bind="css: weightOrder">Atomic Weight</th>
    <th data-bind="css: discoveredOrder">Discovered</th>
</tr>

Next we can add some new observable properties to our ViewModel in sortable-table.js:

nameOrder: ko.observable("ascending"),
numberOrder: ko.observable("ascending"),
symbolOrder: ko.observable("ascending"),
weightOrder: ko.observable("ascending"),
discoveredOrder: ko.observable("ascending"),

We also add a new method called...