# Instance\_eval

**URL:** <https://www.ruby-forum.com/t/instance-eval/81500>\
**Category:** Ruby\
**Created:** [January 9, 2007, 2:50pm UTC](https://www.ruby-forum.com/t/instance-eval/81500 "2007-01-09T14:50:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Sachin\_Gadkar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c0e974/32.png) [@Sachin\_Gadkar](https://www.ruby-forum.com/u/Sachin_Gadkar)\
**Post date:** [January 9, 2007, 2:50pm UTC](https://www.ruby-forum.com/t/instance-eval/81500/1 "2007-01-09T14:50:34Z")

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Hi all,  
I wanted to know the best place where I can find how instance\_eval  
works. I  
also wanted to know how the implementation of .each { } in implemented  
for  
Array class.

I also need to say that I have been new to Ruby but old to OO  
programming.

Thanks.

–  
removed\_email\_address@domain.invalid

URL : [http://nichas143.tripod.com](http://nichas143.tripod.com)

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**Author:** ![Sachin\_Gadkar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c0e974/32.png) [@Sachin\_Gadkar](https://www.ruby-forum.com/u/Sachin_Gadkar)\
**Post date:** [January 9, 2007, 3:11pm UTC](https://www.ruby-forum.com/t/instance-eval/81500/2 "2007-01-09T15:11:39Z")

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Hi –

On Tue, 9 Jan 2007, Sachin Gadkar wrote:

> Hi all,  
> I wanted to know the best place where I can find how instance\_eval works. I

ri instance\_eval

> also wanted to know how the implementation of .each { } in implemented for  
> Array class.

It’s defined in array.c. It goes through the array and yields each  
element in turn as it goes.

David

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<div class="post-metadata">

**Author:** ![Sachin\_Gadkar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c0e974/32.png) [@Sachin\_Gadkar](https://www.ruby-forum.com/u/Sachin_Gadkar)\
**Post date:** [January 9, 2007, 8:57pm UTC](https://www.ruby-forum.com/t/instance-eval/81500/3 "2007-01-09T20:57:35Z")

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Sachin Gadkar wrote:

> Thanks.

Here is how Array#each is implemented:  
[http://ruby-doc.org/core/classes/Array.src/M002225.html](http://ruby-doc.org/core/classes/Array.src/M002225.html)

Here is the documentation for Object#instace\_eval:  
[http://ruby-doc.org/core/classes/Object.html#M000343](http://ruby-doc.org/core/classes/Object.html#M000343)

That should get you started.

-Justin

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<div class="post-metadata">

**Author:** ![Sachin\_Gadkar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c0e974/32.png) [@Sachin\_Gadkar](https://www.ruby-forum.com/u/Sachin_Gadkar)\
**Post date:** [January 10, 2007, 10:07am UTC](https://www.ruby-forum.com/t/instance-eval/81500/4 "2007-01-10T10:07:51Z")

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Thank you very much… I got my answer  
Let me tell you I am in love with Ruby.

On 1/10/07, Justin C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> > programming.  
> > That should get you started.
> 
> -Justin

–  
removed\_email\_address@domain.invalid

URL : [http://nichas143.tripod.com](http://nichas143.tripod.com)