Programs Are Hard, Libraries Are Easy
Programs Are Hard, Libraries Are Easy
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The smaller the piece, the better.
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The more flexible the piece, the better.
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The more hooks into the guts, the better.
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Libraries of functions can have small, flexible pieces.
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Programs are, by definition, monolithic.
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Extract pieces out of your program and put it into a library
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Then test the library
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Side-benefit, you'll have improved your code
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Take the FTP, XML parsing and HTML generation code out of
the program.
