Hatrack River Forum: Ruby Query:

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Posted by Phanto (Member # 5897) on :

I've been working on a nifty program that figures out what number you're thinking of by binary division. (Is it 500? Is it 750? Is it 625?..., until it gets it.)

Then I realized a problem:

quote:

lowerbound = guessNumber.dup

This method is a string method. I could convert guessNumber back to a string, dup it, then convert back. But there has to be a better way. What's the method I need?

Thanks ^_^.

[ June 15, 2007, 02:47 PM: Message edited by: Phanto ]

Posted by fugu13 (Member # 2859) on :

dup is not a string method:

http://www.rubycentral.com/book/ref_c_object.html#Object.dup

But more importantly, why are you trying to duplicate a number?

Posted by Phanto (Member # 5897) on :

Because I want lowerbound to take the value of guessNumber and then I want to change guessNumber's value without changing that of lowerbound.

Posted by fugu13 (Member # 2859) on :

Try running the following ruby script:

code:

a = 1
b = a

a = 2

puts a
puts b