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**Category:** Rails\
**Created:** [June 14, 2009, 6:34pm UTC](https://www.ruby-forum.com/t/check-if-an-html-element-exists-in-rjs/170235 "2009-06-14T18:34:11Z")\
**Posts on this page:** 2\
**Page:** 1
**Author:**  [@bartolome](https://www.ruby-forum.com/u/bartolome)\
**Post date:** [June 14, 2009, 6:34pm UTC](https://www.ruby-forum.com/t/check-if-an-html-element-exists-in-rjs/170235/1 "2009-06-14T18:34:11Z")
Does anybody knows how can I check if an HTML element exists via rjs?
I’ve
been trying, for example:
if page[‘edit\_company\_’ + @id]
if page[‘edit\_company\_’ + @id].blank?
But it generates a js code with a .blank? and it doesn’t make any sense
in
js. I need this to take some actions only if a certain element exists.
Any
suggestion? Thanks in advance.
–
Rodrigo F.
Web D.
SCJP
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**Author:**  [@bartolome](https://www.ruby-forum.com/u/bartolome)\
**Post date:** [June 15, 2009, 12:35am UTC](https://www.ruby-forum.com/t/check-if-an-html-element-exists-in-rjs/170235/2 "2009-06-15T00:35:25Z")
On Jun 14, 5:33 pm, Rodrigo F. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)
wrote:
>
I wrote a bit about this a little while back:
> **[Conditional RJS explained - Space Vatican](https://www.spacevatican.org/2008/5/26/conditional-rjs-explained/)**
>
> RJS is one of those nifty little things that catches your eye when you first start off using Rails. You very quickly get to add ajax and whizzy …
Fred