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

Adding Previous and Next Links


At this point our page is now only displaying the first 10 items. We need to add an interface that allows the user to navigate to other pages of data. In this task we can add Next and Previous links so that the pages can be viewed in a linear sequence.

Engage Thrusters

We'll start out once again by adding the HTML component of this feature. Directly after the <select> element within the <tfoot> element, add the following new markup:

<nav>
    <a href="#" title="Previous page" 
    data-bind="click: goToPrevPage">&laquo;</a>

    <a href="#" title="Next page" 
    data-bind="click: goToNextPage">&raquo;</a>
</nav>

Next we can add some new methods to our ViewModel. These can go directly after the sort method that we added earlier in sortable-table.js:

totalPages: function () {
    var totalPages = this.elements().length / this.pageSize() || 1;
        return Math.ceil(totalPages);
},
goToNextPage: function (...