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comp.lang.ruby

Regular Expression question

Kristen

6/30/2007 2:32:00 AM

Hello,

Im working with regular expressions and I cant quite understand how the
"13" is extracted from the string.


Here is the irb output:
irb(main):005:0> "(13)"[1..-2].to_i
=> 13


I dont understadn how the [1..-2] parameter removes the parenthases from
the string.


Could someone please explain.

Thanks in advance.

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