From: dblack@...
Date: 2006-07-10T01:08:39+09:00
Subject: Re: Sorting arrays

Hi --

On Mon, 10 Jul 2006, Dark Ambient wrote:

> On 7/9/06, dblack@wobblini.net <dblack@wobblini.net> wrote:
>
>> I don't see that in your code.  I see this:
>>
>>    lowest = nil
>> 
>> So this:
>>
>>    lowest == nil
>> 
>> is true.
>
>
> Sorry I'm not trying to be frustrating.
>
> def sort(list)
> sorted = []
> unsorted = []
>
> lowest = nil    <----------- here lowest is being set to nil
> list.each do |item|
> if lowest == nil || item < lowest  <----then expression 1 is true (as you
> say above).

Correct.  Therefore this gets executed:

> lowest = item

So now, lowest is item -- which was "five" (or whatever the first
array item was).

So *next* time through the loop, this:

   lowest == nil

will *not* be true.  So this:

   item < lowest

will be tested instead.


David

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