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Precentage proxy for Ruby's Numeric class

Just a little something i did, cause it usually takes me about 15 minutes to calculate a percentage conversion.
is anyone else checking/calculating dates in irb/console?
“Elad, in 2 weeks you have a dentist appointment!”
"mmm…. "

<br /> script/runner 'puts 2.weeks.from_now'<br />

hehe,
but the method today’s post is about, is the percent_from i did, so here it is.

<br />class Numeric<br /> def precent_from(num = 100)<br /> self.to_f * (num.to_f / 100.0)<br /> end<br />end<br />

which comes out as:

<br />>> 40.precent_from(1000)<br />=> 400.0<br />>> 6.precent_from(1000)<br />=> 60.0<br />

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