From: Simon Strandgaard <neoneye@...>
Date: 2004-04-06T04:39:20+09:00
Subject: Re: [bug] Array#fetch weird second argument

On Tue, 06 Apr 2004 05:23:07 +0900, Peter wrote:

>> While adding a testcase to rubicon for Array#fetch, I discovered that
>> #fetch takes a second argument. However I cannot figure out what its
>> purpose are. I have tried with lots of different input.
>>
>> server> irb
>> irb(main):001:0> %w(a b c).fetch(1, 500)
>> => "b"
>> irb(main):002:0> %w(a b c).fetch(1, -9)
>> => "b"
>> irb(main):003:0> %w(a b c).fetch(1, nil)
>> => "b"
> 
> irb(main):004:0> %w(a b c).fetch(10)
> IndexError: index 10 out of array
>         from (irb):10:in `fetch'
>         from (irb):10
>         from :0
> irb(main):005:0> %w(a b c).fetch(10, 500)
> => 500
> 
> Peter

Ah.. Bommer.  I see the second argument is the default value.

Thanks for straighten this out.

--
Simon Strandgaard