The document discusses the YUI library, which provides a comprehensive suite of JavaScript and CSS tools for building rich web applications. It includes utilities for DOM manipulation, events, animation and high-level widgets. Some key components are the Global object, Node utility for selecting elements, and Event utility for handling user interactions. Examples provided include using YUI for a carousel widget and integrating YQL queries.

1. Hack!
with!
YUI
Sumana H
Frontend Engineer, UDA

2. “The browser is the most futile
deployment environment…”
- Douglas Crockford

3. Don’t reinvent the wheel
Use tools which are already available

4. A comprehensive suite of tools to help
you code like a pro!!
http://yuilibrary.com/

5. • YUI Library is a set of utilities and controls,
written with JS and CSS , for building rich
interactive web applications.
• Free for all users
• Scalable, Fast and Robust
• Most popular, best documented, more
examples.

6. YUI Library
• Low level DOM utilities to high level user
Interface widgets
• Core – Global Object, Node, Events
• Utilities – Animation, drag Drop, get Utility – to
get js/css dynamically.
• Widgets – Autocomplete, calendar, carousel,
Overlay…
• CSS
http://yuilibrary.com/yui/docs/guides/

7. Global Object
<script src="http://yui.yahooapis.com/3.4.1/build/yui/yui-
min.js"></script>
<div id="demo">Click me</div>
<script>
// Create a new YUI sandbox and load the "node" module.
YUI().use('node','datatable', function (Y) {
var demo = Y.one('#demo'); demo.on('click', function (e) {
demo.set('text', 'You clicked me!');
});
});
</script>

8. Node
Getting a Node
<div id="main" class="mainclass"/>
// Use Y.one( [css selector string] )
var node = Y.one('#main');
var node = Y.one(.mainclass);
// Or pass an HTML element
var bodyNode = Y.one(document.body);

9. Creating Nodes and Modifying
Content
// Create a new Node
var item = Y.Node.create('<li id="step3"
class="highlight"><em>Profit</em></li>');
// Replace the content in a Node
Y.one("#hello").setContent("<h1>Hello, <em>World</
em>!</h1>");
// Append new markup inside a Node
bodyNode.append("<p>This is the end, beautiful friend,
the end.</p>");

10. Nodelist
var doneTasks = Y.all('#tasklist .completed');
// NodeLists host most Node methods for simple iterative
operations
doneTasks.removeClass('highlight');
// or call each() to do more work on each Node
doneTasks.each(function (taskNode) {
taskNode.transition({ opacity: 0 }, function () {
completedTasklist.appendChild(this);
});
});

11. Event
YUI().use('event', function (Y) {
// Step 1. Capture a button node
var button = Y.one("#readygo");
// Step 2. Subscribe to its click event with a callback
function
button.on("click", function (e) {
// Step 3. do stuff when the button is clicked
});
});

12. Examples
- Factorial example
- Widget - Carousel
- YQL in YUI
Gallery – http://github.com/yahoo

13. CSS - <link rel="stylesheet" type="text/css"
href="http://yui.yahooapis.com/
gallery-2010.10.20-19-33/build/gallery-
carousel/assets/skins/sam/gallery-
carousel.css"/>

14. THANK YOU