From: Tony Arcieri <tony.arcieri@...>
Date: 2010-10-14T08:26:33+09:00
Subject: Re: more idiomatic way to avoid errors when calling method on variable that may be nil?

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On Mon, Oct 11, 2010 at 10:04 PM, Joel VanderWerf
<joelvanderwerf@gmail.com>wrote:

> You can get around this by putting ( ) around the whole if clause:
>
> var = (hash[key].downcase if hash[key])
>
> It works because (... if ...) returns nil if the condition is false.
>

The parens are unnecessary. The "var" variable will be implicitly bound to
nil if the if condition isn't true.

-- 
Tony Arcieri
Medioh! A Kudelski Brand

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