Ruby: How to make a public static method?

Question

In Java I might do:

public static void doSomething();

And then I can access the method statically without making an instance:

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Answer 1

I am using ruby 1.9.3 and the program is running smoothly in my irb as well.

1.9.3-p286 :001 > class Ask
1.9.3-p286 :002?>     def self.make_permalink(phrase)
1.9.3-p286 :003?>         phrase.strip.downcase.gsub! /\ +/, '-'
1.9.3-p286 :004?>       end
1.9.3-p286 :005?>   end
 => nil 
1.9.3-p286 :006 > Ask.make_permalink("make a slug out of this line")
 => "make-a-slug-out-of-this-line"

It's also working in my test script. Nothing wrong with your given code.It's fine.