Mastering Perl by brian d foy

Author:brian d foy
Language: eng
Format: epub, pdf
ISBN: 9781449393113
Publisher: O’Reilly Media, Inc.
Published: 2014-08-31T04:00:00+00:00

The arguments are [4 4 ] Result was [1]

When I remove the wrap, I leave everything just as I found it and don’t have to worry about reverting my changes.

Summary

I don’t have to change module code to change how a module works. For an object-oriented module, I can create a subclass to change the parts I don’t like. If I can’t subclass it for some reason, I can replace parts of it, just as I can with any other module. No matter what I do, however, I usually want to leave the original code alone (unless it’s my module and I need to fix it) so I don’t make the problem worse.

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