# Counting up in 5's or something similar

**URL:** <https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618>\
**Category:** Rails\
**Created:** [June 5, 2009, 11:05pm UTC](https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618 "2009-06-05T23:05:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/dbc845/32.png) [@Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/u/Ruby_on_RailsS_Talk)\
**Post date:** [June 5, 2009, 11:05pm UTC](https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618/1 "2009-06-05T23:05:58Z")

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Hi

I’m sure I’ve read somewhere that you can count up in ‘jumps’ using  
ruby?

I’ve got two times and I want to basically go up in 15 minute jumps  
without using the whole for loop thing.

Any helpful ideas? All my ruby books are in storage and I can’t find  
anything on google …but then I’m not sure what I’m looking for!

Thanks in advance.

Code:

\<%- (@info[0][1]… @info[0][2]).??? do %\>

Darren

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**Author:** ![Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/dbc845/32.png) [@Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/u/Ruby_on_RailsS_Talk)\
**Post date:** [June 5, 2009, 11:21pm UTC](https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618/2 "2009-06-05T23:21:52Z")

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You probably talk about the step function ([http://www.ruby-doc.org/](http://www.ruby-doc.org/)  
core/classes/Numeric.src/M000189.html). Always look first the Ruby  
API.

Regards.

Franco C…

On Jun 5, 6:04 pm, “Ruby on Rails: Talk” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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**Author:** ![Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/dbc845/32.png) [@Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/u/Ruby_on_RailsS_Talk)\
**Post date:** [June 5, 2009, 11:24pm UTC](https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618/3 "2009-06-05T23:24:13Z")

</div>

On Jun 5, 2009, at 5:04 PM, Ruby on Rails: Talk wrote:

> anything on google …but then I’m not sure what I’m looking for!
> 
> Thanks in advance.
> 
> Code:
> 
> \<%- (@info[0][1]… @info[0][2]).??? do %\>
> 
> Darren

Something like Numeric#step

irb\> require ‘rubygems’  
=\> true  
irb\> require ‘activesupport’  
=\> true  
irb\> start\_time = 10.minutes.from\_now  
=\> Fri Jun 05 17:26:49 -0400 2009  
irb\> end\_time = 4.hours.since start\_time  
=\> Fri Jun 05 21:26:49 -0400 2009  
irb\> start\_time.to\_i.step(end\_time.to\_i, 15.minutes) do |sec| puts  
Time.at(sec); end  
Fri Jun 05 17:26:49 -0400 2009  
Fri Jun 05 17:41:49 -0400 2009  
Fri Jun 05 17:56:49 -0400 2009  
Fri Jun 05 18:11:49 -0400 2009  
Fri Jun 05 18:26:49 -0400 2009  
Fri Jun 05 18:41:49 -0400 2009  
Fri Jun 05 18:56:49 -0400 2009  
Fri Jun 05 19:11:49 -0400 2009  
Fri Jun 05 19:26:49 -0400 2009  
Fri Jun 05 19:41:49 -0400 2009  
Fri Jun 05 19:56:49 -0400 2009  
Fri Jun 05 20:11:49 -0400 2009  
Fri Jun 05 20:26:49 -0400 2009  
Fri Jun 05 20:41:49 -0400 2009  
Fri Jun 05 20:56:49 -0400 2009  
Fri Jun 05 21:11:49 -0400 2009  
Fri Jun 05 21:26:49 -0400 2009  
=\> 1244237209

You have to go from Time =\> Fixnum =\> Time, but you can adjust to your  
specifics.

-Rob

Rob B. [http://agileconsultingllc.com](http://agileconsultingllc.com)  
removed\_email\_address@domain.invalid

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**Author:** ![Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/dbc845/32.png) [@Ruby\_on\_RailsS\_Talk](https://www.ruby-forum.com/u/Ruby_on_RailsS_Talk)\
**Post date:** [June 5, 2009, 11:41pm UTC](https://www.ruby-forum.com/t/counting-up-in-5s-or-something-similar/169618/4 "2009-06-05T23:41:14Z")

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Yeah thanks!

Just after I posted it I remembered my pascal (or similar) days and  
step came into mind …

(@info[0][1]… @info[0][2]).step(15.minutes) do |i|

Seemed to do the trick nicely!