From: "Molitor, Stephen L" <Stephen.L.Molitor@...>
Date: 2006-04-20T02:01:23+09:00
Subject: Re: Is there an "in" operator in ruby ?

Given these declarations:

  a = [*1..10]
  b = [2,4,6,8]

You can do this:

  c = a.select {|i| b.include?(i) }
  c.each {|i| puts i}

Or this:

  a.each {|i| puts i if b.include?(i) }

Or this:

  (a & b).each {|i| puts i }

Steve


-----Original Message-----
From: list-bounce@example.com [mailto:list-bounce@example.com] On Behalf
Of Dinesh Umanath
Sent: Wednesday, April 19, 2006 10:46 AM
To: ruby-talk ML
Subject: Is there an "in" operator in ruby ?

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 ?


Thank You
Dinesh


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