Part IIPackage Design
Package Design
Code consists of statements, grouped into functions, grouped into classes, grouped into packages, combined into systems. There are several insights about this chain of concepts that I would like to discuss here, before we dive into the actual principles of package design.
Becoming a Programmer
It occurred to me that in my programming career I learned about these different concepts in the exact same order in which I just mentioned them. The first thing I learned about PHP as a young website builder was to insert PHP statements into a regular HTML file. By doing so, it was possible to turn a static HTML page into a dynamic one. You could conditionally show some things on the page, dynamically build a navigation ...
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