From: Eric Hodel <drbrain@...7.net>
Date: 2006-01-12T10:03:30+09:00
Subject: Re: Looking up properties and speed

On Jan 11, 2006, at 4:08 PM, Jonathan Leighton wrote:

> In Javascript, if one were to use the same property value twice or  
> more,
> one would store it in a local variable because looking up the property
> slows things down.
>
> Is the situation the same in Ruby? Is there any speed difference  
> between
> these:
>
> def foo
>   val = obj.prop
>   puts val
>   puts val
> end
>
> def boo
>   puts obj.prop
>   puts obj.prop
> end
>
> I assume not because I think the reason it's like that with Javascript
> is because of the DOM (yeah, that's not strictly Javascript).

Why do you care?

Why not make clean, readable code and optimize the parts that are  
causing the biggest slowdown?

-- 
Eric Hodel - drbrain@segment7.net - http://segment7.net
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