From: Xavier Noria <fxn@...>
Date: 2006-04-20T01:04:41+09:00
Subject: Re: Is there an "in" operator in ruby ?

On Apr 19, 2006, at 17:45, Dinesh Umanath wrote:

> Hi all,
>
> I want to do this manipulation. I have an array say @test=[2,4,6,8].
> How can i compare a given number against the values which are  
> present in
> this array? ie.
>
> In a for loop i will be Iterating through a sequence of number say  
> 1 to
> 10, and i want to take each of these number 1 to 10 and check if this
> number is present in the given array @test, if it is present then i  
> want
> to execute some sequence of steps, How can i do this check in ruby ?
>
> Is there a kind of "in" operator in ruby ?

Yes, Enumerable#include?:

irb(main):001:0> 1.upto(10) { |x| puts x if [2,4,6,8].include?(x) }
2
4
6
8
=> 1

-- fxn