Solved

error in jquery and javascript

Posted on 2014-02-20
2
256 Views
Last Modified: 2014-02-21
Hi,

I want to do this, what is wrong? Is there a addClass in javascript that doesn't remove the existing class?

tbl.rows[r].cells.item(c).className = "ty";
var trd = tbl.rows[r].cells.item(c);
$("trd").addClass("vacant");      

the idea is to append a class to the existing one to finish like that

<td class "ty addClass">test</td>
0
Comment
Question by:joyacv2
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 43

Expert Comment

by:Chris Stanyon
ID: 39876598
You're mixing javascript with jQuery so your code look a bit of a mess, but addClass() won't remove other classes. You don't need the quotes around trd. Try this:

$(trd).addClass("vacant");
0
 
LVL 43

Accepted Solution

by:
Chris Stanyon earned 500 total points
ID: 39876621
If you want to add a class in pure Javascript, rather than using jQuery's addClass() method, then something like this:

var trd = tbl.rows[r].cells.item(c);
trd.className += " vacant"; //don't forget the space!

Open in new window

0

Featured Post

Is Your DevOps Pipeline Leaking?

Is your CI/CD pipeline a hodge-podge of randomly connected tools? You’ve likely got a tool to fix one problem & then a different tool to fix another, resulting in a cluster of tools with overlapping functionality. Learn how to optimize your pipeline with Gartner's recommendations

Question has a verified solution.

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

There are a couple ways to attach a JavaScript function to dynamically created elements. You can make a new script for each element as it’s created or you can use delegation. Delegation allows a single script that is added at page creation to mat…
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

705 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