The last planning activity in XP is pair programming. Two programmers discuss what they are about to program. They write a unit test which is a formal specification. Only after their intention has been communicated to each other, do they begin the implementation. more..
The standard Perl distribution comes with a debugger, although it's really just another Perl program, perl5db.pl. Since it is just a program, I can use it as the basis for writing my own debuggers to suit my needs, or I can use the interface perl5db.pl provides to configure its actions. That's just the beginning, though. read more...
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