From: noterrain mee <lists@...>
Date: 2013-07-26T12:56:47+09:00
Subject: replace words using gsub

New to ruby! Body is a string, i am using the code directly below. I am
not quite understand what does |k| and  K means.  This code shows the
error "undefined method `default_proc=' for {"up"=>"down", "in"=>"out",
"you"=>"he"}:Hash (NoMethodError)". Could someone help me out?

subs = {
    "you" => "he",
    "up" => "down",
    "in" => "out"}

subs.default_proc = proc {|k| k}
body.gsub(/(?=\b).+(?=\b)/, subs)

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