Javascript: Passing Forms into Sub-routines

Please support our JavaScript / DHTML / AJAX advertiser: PostgreSQL or MySQL? Compare and contrast the two most popular open source databases
Reply

Join Date: Jul 2006
Posts: 88
Reputation: DavidB is an unknown quantity at this point 
Solved Threads: 2
DavidB DavidB is offline Offline
Junior Poster in Training

Javascript: Passing Forms into Sub-routines

 
0
  #1
Aug 27th, 2008
I usually code all my Javascript in a single external file that accepts the data from a form in the main page's HTML textarea box.

Now I would like to break up this single Javascript file into separate files.
For example, I'd like to have main.js as the main controlling program which calls, say, input.js, do-computations.js, and output-results.js.

I would simply like to have main.js feed the textarea contents into input.js to parse the contents and assign all the data properly, to be passed back out to main.js.

Can this be done (is it simply a matter of feeding this.form from sub-routine, to sub-routine, to sub-routine, etc.)? Is there a limit to how deep into sub-routines a form element can be passed?
Reply With Quote Quick reply to this message  
Join Date: Aug 2008
Posts: 381
Reputation: langsor is an unknown quantity at this point 
Solved Threads: 33
langsor langsor is offline Offline
Posting Whiz

Re: Javascript: Passing Forms into Sub-routines

 
0
  #2
Sep 1st, 2008
I don't know what limit might be placed on such a thing ... but I built (can't find my example at the moment) a little function that creates a new javascript include element in the page header, effectively loading javascript on the fly (I used it for proof of concept loading php values as javascript without ajax)...

Try using the javascript DOM to write and append a <script> tag to the page header, and you should get the new javascript loaded dynamically in the page.

parent script
  1. function load_script ( path ) {
  2. var head = document.getElementsByTagName('head').item(0);
  3. var script = document.createElement('script');
  4. script.setAttribute( 'type', 'text/javascript' );
  5. script.setAttribute( 'src', path );
  6. head.appendChild( script );
  7. }
  8.  
  9. load_script( 'test.js' );

child script (test.js)
  1. alert( 'I am loaded' );

Didn't test this, but something like this is how I made it work before.

Cheers

...
Last edited by langsor; Sep 1st, 2008 at 3:42 am.
Google is the answer to all of your questions -- the trick is knowing what question to ask in your specific predicament.
Reply With Quote Quick reply to this message  
Reply

This thread is more than three months old.
Perhaps start a new thread instead?
Message:



Similar Threads
Other Threads in the JavaScript / DHTML / AJAX Forum
Thread Tools Search this Thread



About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC