From: Tim Bates <tim@...>
Date: 2003-03-27T13:22:54+09:00
Subject: Re: case not calling class' '===' method?

On Thu, 27 Mar 2003 2:41 pm, Phil Tomson wrote:
> maybe I'm missing something obvious...

Case uses the === operator the opposite way around to what you might expect.

irb(main):001:0> "myString" === /my/
false
irb(main):002:0> /my/ === "myString"
0
irb(main):003:0> case "myString"
irb(main):004:1> when /my/
irb(main):005:1>   true
irb(main):006:1> end
true
irb(main):007:0> case /my/
irb(main):008:1> when "myString"
irb(main):009:1>   true
irb(main):010:1> end
nil

In the example of
  case "myString"
  when /my/
    true
  end
Ruby actually calls Regexp#===, not String#===

Tim Bates
-- 
tim@bates.id.au