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A warning sign of low code quality. The term has been used in a series of articles and training seminars by MarkJasonDominus. See the following articles at perl.com: [Article 1] [Article 2] [Article 3]. See also his [seminar description].


In the seminar, I usually say that a red flag is a sign that you can see in your code that indicates that you should stop and check to see if you have an easy opportunity to make the code better. Sometimes you don't, but often you do.

Here's my current list of 'red flags'. Some of these are Perl-specific; others aren't:

My big discovery was that these few problems are easy to recognize and to fix, and if you find and fix just those problems, you can turn an awful lot of really terrible code into good code with very little thought.


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Last edited April 22, 2007 9:33 pm by MarkusLude (diff)