From: Mike Steiner <mikejaysteiner@...>
Date: 2007-05-23T11:45:39+09:00
Subject: problem appending to arrays in a hash of arrays

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I'm trying to create a hash with each element being an array (initially
empty), and I've tried a few variations to get what I want. Why don't the
last 2 lines work?

h = Hash.new ( Array.new )
h["abc"] = h["abc"] + [ "foo" ]   # this works
h["abc"] << "foo"                 # this doesn't
h["abc"].push ( "foo" )           # this doesn't either

(Note: the above code isn't the actual code I'm using, but a simplified
version.)

Mike Steiner

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