Jquery beltranhomewrok

A short report about:
Catherine Beltran

For starters…
 Honestly.. I googled jquery because
that’s the usual thing that a college
student will do if their professor asked
them to do a homework about it. I found
myself reading stuffs at
http://jquery.com/
 *(THIS IS NOT THE FIRST FORMAL
SLIDE OF THE REPORT) bear with me

What is jQuery?
 jQuery is a fast, small, and feature-rich
JavaScript library. It makes things like
HTML document traversal and
manipulation, event handling, animation,
and Ajax much simpler with an easy-to-
use API that works across a multitude of
browsers. With a combination of
versatility and extensibility, jQuery has
changed the way that millions of people
write JavaScript.

How w3schools define it:
 jQuery is a JavaScript Library.
 jQuery greatly simplifies JavaScript
programming.
 jQuery is easy to learn.

jQuery is a lightweight, "write less, do more", JavaScript library.
The purpose of jQuery is to make it much easier to use JavaScript
on your website.
jQuery takes a lot of common tasks that require many lines of
JavaScript code to accomplish, and wraps them into methods
that you can call with a single line of code.
jQuery also simplifies a lot of the complicated things from
JavaScript, like AJAX calls and DOM manipulation.
The jQuery library contains the following features:
 HTML/DOM manipulation
 CSS manipulation
 HTML event methods
 Effects and animations
 AJAX
 Utilities

Why jQuery?
There are a lots of other JavaScript frameworks
out there, but jQuery seems to be the most
popular, and also the most extendable.
Many of the biggest companies on the Web use
jQuery, such as:
 Google
 Microsoft
 IBM
 Netflix


How wikipedia defines it:
 jQuery is a multi-browser (cf. cross-browser) JavaScript library designed to simplify
the client-side scripting of HTML. It was released in January 2006 at BarCamp NYC
by John Resig. It is currently developed by a team of developers led by Dave Methvin.
Used by over 65% of the 10,000 most visited websites, jQuery is the most
popular JavaScript library in use today.
 jQuery is free, open source software, licensed under the MIT License. jQuery's syntax
is designed to make it easier to navigate a document, select DOM elements,
create animations, handle events, and develop Ajax applications. jQuery also provides
capabilities for developers to create plug-ins on top of the JavaScript library. This
enables developers to create abstractions for low-level interaction and animation,
advanced effects and high-level, theme-able widgets. The modular approach to the
jQuery library allows the creation of powerful dynamic web pages and web applications.
 The set of jQuery core features — DOM element selections, traversal and manipulation
—, enabled by its selector engine (named "Sizzle" from v1.3), created a new
"programming style", fusing algorithms and DOM-data-structures; and influenced the
architecture of other Javascript frameworks like YUI v3 and Dojo.
 Microsoft and Nokia have announced plans to bundle jQuery on their platforms.
Microsoft is adopting it initially within Visual Studio for use within Microsoft's ASP.NET
AJAX framework and ASP.NET MVC Framework while Nokia has integrated it into their
Web Run-Time widget development platform.] jQuery has also been used
in MediaWiki since version 1.16

jQuery includes the following
features:
 DOM element selections using the multi-browser open source
selector engine Sizzle, a spin-off of the jQuery project[12]
 DOM traversal and modification (including support for CSS 1–3)
 DOM manipulation based on CSS selectors that uses node
elements name and node elements attributes (id and class) as
criteria to build selectors
 Events
 Effects and animations
 AJAX
 Extensibility through plug-ins
 Utilities - such as user agent information, feature detection
 Compatibility methods that are natively available in modern
browsers but need fall backs for older ones - For example
the inArray() and each() functions.
 Multi-browser (not to be confused with cross-browser) support.

Including the library:
 The jQuery library is a single
JavaScript file, containing all of its
common DOM, event, effects, and Ajax
functions. It can be included within a
web page by linking to a local copy, or to
one of the many copies available from
public servers. jQuery has
aCDN sponsored by Media
Temple (previously at Amazon).
Google and Microsoft host it as well.

 <script type="text/javascript"
src="jquery.js"></script>
 It is also possible to include jQuery
directly from content delivery networks.
 <script
src="http://ajax.googleapis.com/ajax/libs
/jquery/1.9.1/jquery.min.js"></script>

Usage styles:
 jQuery has two usage styles:
 Via the $ function, which is a factory method for the
jQuery object. These functions, often called commands,
are chainable as they all return jQuery objects.
 Via $.-prefixed functions. These are utility functions, which
do not act upon the jQuery object directly.
 Typically, access to and manipulation of multiple DOM
nodes begins with the $ function being called with
a CSS selector string, which results in a jQuery object
referencing matching elements in the HTML page. This
node set can be manipulated by calling instance methods
on the jQuery object, or on the nodes themselves. For
example:
 $("div.test").add("p.quote").addClass("blue").slideDown("sl
ow");

 This line finds the union of all div tags with class
attribute test and all p tags with CSS class attribute quote,
adds the class attribute blue to each matched element,
and then increases their height with an animation.
The $ and add functions affect the matched set, while
the addClass and slideDown affect the referenced nodes.
 Besides accessing DOM nodes through jQuery object
hierarchy, it is also possible to create new DOM elements
if a string passed as the argument to $() looks like HTML.
For example, this line finds an HTML SELECT element
with ID="carmakes", and adds an OPTION element with
value "VAG" and text "Volkswagen":
 $('select#carmakes').append($('<option
/>').attr({value:"VAG"}).append("Volkswagen"));

 The methods prefixed with $. are
convenience methods or affect global
properties and behaviour. For example,
the following is an example of the
iterating function called each in jQuery:
 $.each([1,2,3], function() {
document.write(this + 1); });

 This writes "234" to the document.
 It is possible to perform browser-independent Ajax queries
using $.ajax and associated methods to load and manipulate remote
data.
 $.ajax({ type: "POST", url: "example.php", data:
"name=John&location=Boston" }).done( function(msg) { alert( "Data
Saved: " + msg ); }).fail( function( xmlHttpRequest, statusText,
errorThrown ) { alert( "Your form submission failed.nn" + "XML Http
Request: " + JSON.stringify( xmlHttpRequest ) + ",nStatus Text: " +
statusText + ",nError Thrown: " + errorThrown ); });
 This example posts the
data name=John and location=Boston to example.php on the server.
When this request finishes successfully, the success function is called
to alert the user. If the request fails, it will alert the user to the failure,
the status of the request, and the specific error.

jQuery plug-ins:
 jQuery's architecture allows developers to
create plug-in code to extend its
functionality. Currently there are thousands
of jQuery plug-ins available on the web that
cover a wide range of functionality such as
Ajax helpers, web services, datagrids,
dynamic lists, XML and XSLT tools, drag
and drop, events, cookie handling, modal
windows, and even a jQuery-
based Commodore 64 emulator

Reference
 http://www.w3schools.com/jquery
 http://jquery.com/
 http://www.wikipedia.com/jquery
 Visit my blog site: I used some jQuery
hihi
 http://catherinebeltran.blogspot.com/

Jquery beltranhomewrok

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