# Re: Ruby Newbie - array/hash help

**URL:** <https://www.ruby-forum.com/t/re-ruby-newbie-array-hash-help/67759>\
**Category:** Ruby\
**Created:** [September 6, 2006, 5:00pm UTC](https://www.ruby-forum.com/t/re-ruby-newbie-array-hash-help/67759 "2006-09-06T17:00:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BergerS\_Daniel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bc8723/32.png) [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\
**Post date:** [September 6, 2006, 5:00pm UTC](https://www.ruby-forum.com/t/re-ruby-newbie-array-hash-help/67759/1 "2006-09-06T17:00:15Z")

</div>

> I’ve been doing research, but I can’t make heads or tails of it. Any  
> assistance would be greatly appreciated.

data\_sources.keys.each{ |table\_name|

# some\_code

}

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<div class="post-metadata">

**Author:** ![BergerS\_Daniel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bc8723/32.png) [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\
**Post date:** [September 6, 2006, 5:14pm UTC](https://www.ruby-forum.com/t/re-ruby-newbie-array-hash-help/67759/2 "2006-09-06T17:14:17Z")

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On Sep 6, 2006, at 9:51 AM, Berger, Daniel wrote:

> data\_sources.keys.each{ |table\_name|
> 
> # some\_code
> 
> }

Or:

data\_sources.each\_key { |table\_name|  
# …  
}

James Edward G. II

---

<div class="post-metadata">

**Author:** ![BergerS\_Daniel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bc8723/32.png) [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\
**Post date:** [September 6, 2006, 5:22pm UTC](https://www.ruby-forum.com/t/re-ruby-newbie-array-hash-help/67759/3 "2006-09-06T17:22:18Z")

</div>

\<…\>

> data\_sources.keys.each{ |table\_name|
> 
> # some\_code
> 
> }

Or:

data\_sources.each\_key { |table\_name|  
#some code  
}

Regards,  
Rimantas