Hello
friends!
My
name is Naresh Pal and this write up is all about the fundamentals of
jQuery and I am glad to share my experience and knowledge with you. I
am learning it in ADMEC Multimedia Institute, Delhi and I was asked
to explain what I learned in my class so I am writing here.
jQuery
is the milestone for the beginners. It is simple and easy to learn.
jQuery is good to add front-end-interactivity to web page. It reduces
the large codes of JavaScript seamlessly.
Mr. John Resig is an American software engineer
and entrepreneur, best known as the creator and lead developer of the
jQuery a JavaScript library and its released by jQuery team in August
26, 2006. jQuery is free, open-source software licensed under the MIT
License.
What
is jQuey?
jQuery is light
weight JavaScript library. Where we write less and do more. The
purpose of using jQuery is to make JavaScript code easy. jQuey have a
lot of common tasks for a web page in a single line of code, which
required many lines if working in JavaScript. We can say that jQuery
has the ability to wrap JavaScript multi line code into a single line
code.
jQuery is a
cross-platform JavaScript library designed to simplify the
client-side scripting of HTML.
It is a inbuilt
library for JavaScript. So we have to need just basic knowledge of
JavaScript (Core & Advanced) like Operators,
Conditions, Loops, Objects, function, Array
etc. and we can have good command in jQuery then easily.
Why
we use jQuey?
When we want to
develop a dynamic website, we have a need of at least these three
primary tools to build it i.e. HTML, CSS and
JavaScript.
We can create
data structure and presentation using HTML5 and CSS3, but if we want to
add some logic's or behaviors to
our web page for good front end interactivity, we will accomplish
such tasks using JavaScript.
When we code a
program in JavaScript to perform a simple event to our web page. We
have to write many lines of code for very small task after having a
good command over JavaScript Core and
Advanced. Large code
takes more development time and diminish the performance of
application or website. Writing in plan JavaScript involves various
cross browser issues too and seriously that sucks badly.
jQuery
is a complete solution for this. jQuery is the library of JavaScript
means developers of jQuery simplify the JavaScript code. The purpose
of jQuery is to make JavaScript code as much easier as it can be with
all the cross browser solutions so jQuery purpose is “write
less, do more”.
How
to use jQuey?
We just have to follow some steps as given below:
STEP 1 : First we have to
download jQuery file from www.jquey.com
we have to keep this file in our root folder.
STEP 2 : At the end of body
section of HTML page start the script tag and place the source of
jquey.js file as follows;
<html>
<head>
<title> ...........</title>
</head>
<head>
<title> ...........</title>
</head>
<body>
<! – Write your HTML code here -->
<script type="text/javascript" src="(path)/jQuery.js"></script>
<script>
// your Query goes here
</script>
</body>
</html>
<! – Write your HTML code here -->
<script type="text/javascript" src="(path)/jQuery.js"></script>
<script>
// your Query goes here
</script>
</body>
</html>
Getting Started with jQuery
jQuery or $
Both of them
are same so you can use alternatively. $ is mostly used for 'jQuery'
because it is short and fast to write.
Note: Don't
use $ if it is conflicting with some other libraries being used in
same app.
Example: Say
“hello world”
<script>
$(document).ready(function(){
alert(‘Hi
! here I am getting start with jQuery’);
}
</script>
Result :
No comments:
Post a Comment