From: Robert Klemme <shortcutter@...>
Date: 2013-01-21T02:55:18+09:00
Subject: Re: 2Q: Getting first 4 elements from array and calling class methods directly

On Sun, Jan 20, 2013 at 3:26 PM, Sandor Szücs
<sandor.szuecs@fu-berlin.de> wrote:
> On 1/20/13 3:08 PM, Panagiotis Atmatzidis wrote:
>
>> 1) Is there any more elegant[1] way to get the first for elements of '@entries' object array?
>
> irb:0> a = (1..10).to_a
> => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
> irb:0> a.take(3)
> => [1, 2, 3]
> irb:0> a
> => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
> irb:0> a.pop(3)
> => [8, 9, 10]
> irb:0> a
> => [1, 2, 3, 4, 5, 6, 7]
> irb:0> a.shift(3)
> => [1, 2, 3]
> irb:0> a
> => [4, 5, 6, 7]

And then there is

irb(main):001:0> a = (1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
irb(main):002:0> a.first(3)
=> [1, 2, 3]

Cheers

robert


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