From: Robert Klemme <shortcutter@...>
Date: 2011-02-07T23:54:24+09:00
Subject: Re: Find in Array

2011/2/7 Jesús Gabriel y Galán <jgabrielygalan@gmail.com>:
> On Mon, Feb 7, 2011 at 3:22 PM, Benjamin S.
> <benjamin.stauffacher@gmail.com> wrote:
>> As I see it, with these methods i can only search for full strings. My
>> problem is, that i get a string and my search parameter is only a part
>> of this string (so find, include, find_index etc doesn't work...)
>
> You can use find/select with a regular expression:
>
>
> irb(main):037:0> a = %w{test test2 nothing something}
> => ["test", "test2", "nothing", "something"]
> irb(main):038:0> a.find {|x| /test/ =~ x}
> => "test"
> irb(main):039:0> a.select {|x| /test/ =~ x}
> => ["test", "test2"]
> irb(main):040:0> a.select {|x| /thing/ =~ x}
> => ["nothing", "something"]

The last one is even simpler with #grep:

irb(main):001:0> a = %w{test test2 nothing something}
=> ["test", "test2", "nothing", "something"]
irb(main):002:0> a.grep /thing/
=> ["nothing", "something"]
irb(main):003:0>

Kind regards

robert

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