# ERB not omiting lines

**URL:** <https://www.ruby-forum.com/t/erb-not-omiting-lines/162128>\
**Category:** Rails\
**Created:** [March 6, 2009, 12:46am UTC](https://www.ruby-forum.com/t/erb-not-omiting-lines/162128 "2009-03-06T00:46:31Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![ericgoodwin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/c68b51/32.png) [@ericgoodwin](https://www.ruby-forum.com/u/ericgoodwin)\
**Post date:** [March 6, 2009, 12:46am UTC](https://www.ruby-forum.com/t/erb-not-omiting-lines/162128/1 "2009-03-06T00:46:31Z")

</div>

According to numerous ERB tutorials, the following example:

\<%- [1,2,3].each do |x| -%\>  
\<%= x %\>  
\<%- end -%\>

should output:

1  
2  
3

Instead, it outputs:

1

2

3

What am I doing wrong?

---

<div class="post-metadata">

**Author:** ![ericgoodwin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/c68b51/32.png) [@ericgoodwin](https://www.ruby-forum.com/u/ericgoodwin)\
**Post date:** [March 6, 2009, 12:51am UTC](https://www.ruby-forum.com/t/erb-not-omiting-lines/162128/2 "2009-03-06T00:51:16Z")

</div>

Try…

\<%= x -%\>

On Thu, Mar 5, 2009 at 3:46 PM, Aryk G.  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Â 1
> 
> ## What am I doing wrong?
> 
> Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/).
> 
> >

–  
Robby R.  
Chief Evangelist, Partner

PLANET ARGON, LLC  
design // development // hosting w/Ruby on Rails

> **[Planet Argon](https://www.planetargon.com/)**
>
> Planet Argon is a Ruby on Rails development agency specializing in maintenance and support for existing Rails apps. Based in Portland, OR, Planet Argon has been a member of the Rails community since 2004.

[http://robbyonrails.com/](http://robbyonrails.com/)  
[http://twitter.com/planetargon](http://twitter.com/planetargon)  
aim: planetargon

+1 503 445 2457  
+1 877 55 ARGON [toll free]  
+1 815 642 4068 [fax]

---

<div class="post-metadata">

**Author:** ![ericgoodwin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/c68b51/32.png) [@ericgoodwin](https://www.ruby-forum.com/u/ericgoodwin)\
**Post date:** [March 6, 2009, 3:53am UTC](https://www.ruby-forum.com/t/erb-not-omiting-lines/162128/3 "2009-03-06T03:53:11Z")

</div>

Nope, that didn’t work. That actually causes that line to not show up.

Anybody else have any thoughts?

Aryk

Robby R. wrote:

> Try…
> 
> \<%= x -%\>
> 
> On Thu, Mar 5, 2009 at 3:46 PM, Aryk G.  
> [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:
> 
> > Â 1
> > 
> > ## What am I doing wrong?
> > 
> > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/).
> > 
> > >
> 
> –  
> Robby R.  
> Chief Evangelist, Partner
> 
> PLANET ARGON, LLC  
> design // development // hosting w/Ruby on Rails
> 
> [http://planetargon.com/](http://planetargon.com/)  
> [http://robbyonrails.com/](http://robbyonrails.com/)  
> [http://twitter.com/planetargon](http://twitter.com/planetargon)  
> aim: planetargon
> 
> +1 503 445 2457  
> +1 877 55 ARGON [toll free]  
> +1 815 642 4068 [fax]