From: "Derrick B." <lists@...>
Date: 2012-12-29T10:01:12+09:00
Subject: Re: Ruby Koans regarding Hashes.

7stud -- wrote in post #1090519:
> 7stud -- wrote in post #1090511:
>>
>> ...ruby stores the block somewhere, and then every time you try to
>> access a non-existent key, ruby executes the block.
>>
>
> I don't know if you know it or not but some of ruby's built in methods
> have strange names.  For instance, when you write:
>
> hash[key] << 'hello'
>
> …the left side is syntactic sugar for this method call:
>
> hash.[](key)
>

Yep, read about it in section 4.4 of "The Ruby Programming Language",
but don't quiz me on it yet!  :)

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