Solved

does browser download completely include javascript file?

Posted on 2002-05-27
9
221 Views
Last Modified: 2013-11-18
If I put this in a html file:
<script language="javascript" src="file.js">
 Will the browser download the whole .js file? Or it just download the only functions that are called in html file? The matter is that I have a .js file with a lot of functions as a library but not every html page is using all functions. Just need to know if this will waste downloading time. Thanks
0
Comment
Question by:quanghoc
  • 4
  • 4
9 Comments
 
LVL 30

Accepted Solution

by:
third earned 150 total points
ID: 7038003
yes it will download the whole .js file in the user's temporary internet files folder.
0
 
LVL 33

Expert Comment

by:hongjun
ID: 7038009
Include a file will download the whole. This includes all variables.


hongjun
0
 
LVL 30

Expert Comment

by:third
ID: 7038015
if it's really huge then i guess it's advisable to put the common functions used into one .js file and call this in each of your pages. the other functions should reside to other individual .js file. only the pages that needs this function should reference the .js file.

so for example a page needs the common functions file and the specific functions file you can add two extenal .js file to your page.

<script language="javascript" src="file.js">
<script language="javascript" src="specific.js">
0
 
LVL 33

Expert Comment

by:hongjun
ID: 7038018
third, good illustration on the effective use of js files.

hongjun
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 30

Expert Comment

by:third
ID: 7038024
thanks! ;-)
0
 
LVL 1

Author Comment

by:quanghoc
ID: 7038107
So basically, the whole thing will be downloaded, including "comments" ?? What if the .js file has included another .js file?
0
 
LVL 33

Expert Comment

by:hongjun
ID: 7038126
yap
comments as well.

js file include another js file?
how you do that!!!

hongjun
0
 
LVL 30

Expert Comment

by:third
ID: 7038174
add info:

.js files cannot include another .js file. if you want to include two separate .js files on the web page, do what i have illustrated above.

thanks for the A! ;-)
0
 
LVL 33

Expert Comment

by:hongjun
ID: 7038329
well deserved!
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Shoutout to Emily Plummer (http://www.experts-exchange.com/members/eplummer26.html) for giving me this article! She did most of it, I just finished it up and posted it for her :)    Introduction In a previous article (http://www.experts-exchang…
This article discusses how to create an extensible mechanism for linked drop downs.
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…
The viewer will learn the benefit of using external CSS files and the relationship between class and ID selectors. Create your external css file by saving it as style.css then set up your style tags: (CODE) Reference the nav tag and set your prop…

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now