Solved

javascript - converting from var array to string

Posted on 2004-09-01
5
279 Views
Last Modified: 2010-04-01
I'm using a javascript to populate an array defined as:

var typearray = new Array();

then, I need to set a hidden field in the html to this value.  I tried:
 document.sortForm.typearray.value = typearray;

and:

document.sortForm.typearray.value = typearray.toString();

but when I display the value it shows as [object] and when I try to use it in my servlet the value is garbage.

How do I pass this array as a string by using hidden fields in my html?


0
Comment
Question by:donz4
  • 3
5 Comments
 
LVL 35

Accepted Solution

by:
TimYates earned 500 total points
ID: 11957099
You want to put an array (a collection of objects) into a hidden field (a single object)?

I think you'll need to do something like:

value = '' ;
for( int i = 0 ; i < typearray.length ; i++ )
{
    if( i > 0 )
        value += ',' ;
    value += typearray[ i ] ;
}
document.sortForm.typearray.value = value ;

0
 
LVL 35

Expert Comment

by:TimYates
ID: 11957126
basically you can't do what you're trying to do, so that code will comma separate the values in the array, and set the hidden field to that value

So if you had:

valuearray = new Array( 3 ) ;
valuearray[ 0 ] = 'hello' ;
valuearray[ 2 ] = 'there' ;
valuearray[ 3 ] = 'tim' ;

the hidden field will be set to

"hello,there,tim"
0
 
LVL 27

Expert Comment

by:rrz
ID: 11960167
You could try this javascript array method. I saw this in a book.  
document.sortForm.hidden.value = typearray.join();  
or use
document.sortForm.hidden.value = typearray.join(separator);  
Now, do want us to give code for parsing this value on the JSP side ?       rrz
0
 
LVL 35

Expert Comment

by:TimYates
ID: 11961086
> document.sortForm.hidden.value = typearray.join();  

Nice! :-D
0
 
LVL 11

Expert Comment

by:raj3060
ID: 11966643
Something like this;
var typearray = new Array();
var oSpan = document.getElementById("");
oSpan.innerHTML = typearray [0];  // append each array element to the span's contents
and so on---
Did you get the idea?
--Raj
0

Featured Post

Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

Join & Write a Comment

Suggested Solutions

Owning a franchise can be the dream of a lifetime. It provides a chance for economic growth. You can be as successful as you want.  To make your franchise successful, you need to market it successfully. Here are six of the best marketing strategies …
Moving applications to the cloud or switching services to cloud-based ones, is a stressful job.  Here's how you can make it easier.
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
Illustrator's Shape Builder tool will let you combine shapes visually and interactively. This video shows the Mac version, but the tool works the same way in Windows. To follow along with this video, you can draw your own shapes or download the file…

706 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

17 Experts available now in Live!

Get 1:1 Help Now