LangWart: Method congestion from mutate multiplicty
Neil Hodgson
nhodgson at iinet.net.au
Sun Feb 10 16:57:22 EST 2013
Rick Johnson:
> Really?
Yes.
>> a = [1,2]
=> [1, 2]
>> a.push(3)
=> [1, 2, 3]
>> a
=> [1, 2, 3]
This could be called "mutation without exclamation".
>> require 'WEBrick'
=> true
>> vowels = "[aeiou]+"
=> "[aeiou]+"
>> vowels.object_id
=> 2234951380
>> WEBrick::HTTPUtils._make_regex!(vowels)
=> /([^\[aeiou\]\+])/n
>> vowels
=> "[aeiou]+"
>> vowels.object_id
=> 2234951380
The counterpart, exclamation without mutation.
Neil
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