Two Ways To Optimize JavaScripts
In Web Pages
In this
article I show you how to optimize your web pages by moving
your JavaScript code out of the all-important top portion of
the HTML file.
JavaScripts
are usually placed in between the <HEAD> section of a
page, which pushes your body text containing your important
keyword phrases further down the page.
This can
affect the number of keywords that search engine spiders index.
It could also makes your keywords less relevant because they
appear lower on the page.
The solution
is to move the JavaScript code away from the top portion of
the HTML file. In fact, I will show you two solutions to resolving
this problem.
1. The
first solution is to move the JavaScript code into a separate
file and link to this file from the HTML file.
This is
the preferred solution because it:
- reduces
your file size, and therefore your download time.
- allows
you to reuse the code on other pages by simply linking to
this file.
Once you
have move the JavaScript code to the new file, add the following
code to the <HEAD>... </HEAD> portion of the HTML
file:
<SCRIPT
LANGUAGE="JavaScript" SRC="file-name.js">
</SCRIPT>
You may
replace "file-name" with any file name you like.
Please
note that external JavaScript files cannot contain any HTML
tags. They must contain only JavaScript code.
Some servers
may not recognize the ".js" file type. If that is the case with
your server, contact your web hosting company and ask them to
add the following line to the "mime.types" file in the server's
config directory, and then restart the server.
type=application/x-javascript exts=js
2. The
second solution is even simply. All you have to do is move the
JavaScript code to the very bottom of the HTML file, below the
</HTML> tag.
Yes! It
really does work! Although it is considered good programming
practice to include your JavaScript within the <HEAD>
portion of a HTML file, it isn't necessary.
That's
it! Simple isn't it? I highly recommend you use either of these
two solutions to optimizing your web pages that contain JavaScript
code.
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About
The Author: Michael Wong is the editor
of GoDefy.com - the world's first