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

Resetting the page


Now that we've wired up our numeric paging links, a problem has become apparent. Sometimes, when changing the number of items per page, an empty table is displayed.

We can fix this by adding another binding to the <select> element that resets the current page whenever the <select>element's value changes.

Engage Thrusters

First of all we can add the new binding to the HTML. Change the <select> element so that it appears as follows:

<select id="perPage" data-bind="value: pageSize, event: { 
    change: goToFirstPage
}">

Now we can add the goToFirstPage() method to the ViewModel:

goToFirstPage: function () {
    this.currentPage(0);
}

Objective Complete - Mini Debriefing

First of all we added the event binding as a second binding to the <select> element responsible for setting the number of items per page. The format of this binding is slightly different than other bindings we've used in this project.

After the name of the binding, event in this case...