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

Requesting click data


The console page starts out almost empty, containing mostly a form for loading the page that we want to view click data for. In this task we'll look at how we can load that page and request its data from the server.

Engage Thrusters

Start out by adding the following code to the empty function in console.js:

var doc = $(document),
    input = doc.find("#url"),
    button = doc.find("#load"),
    iframe = doc.find("#page"),
    canvas = document.createElement("canvas");

$.ajaxSetup({
    type: "POST",
    contentType: "application/json",
    dataType: "json",
    converters: {
        "textjson": function (data) {
            var parsed = JSON.parse(data);

            return parsed.d || parsed;
        }
    }
});

We can then add a click handler for the <button> element:

doc.on("click", "#load", function (e) {
    e.preventDefault();

    var url = input.val(),
        len;

    if (url) {
        input.removeClass("empty").data("url", url);
        button.prop("disabled...