Bottom up or Top down Programming

Charles Petzold, in Does Visual Studio Rot the Mind, writes that “IntelliSense is … dictating the way we program”.

For example, for many years programmers have debated whether it’s best to code in a top-down manner, where you basically start with the overall structure of the program and then eventually code the more detailed routines at the bottom; or, alternatively, the bottom-up approach, where you start with the low-level functions and then proceed upwards. Some languages, such as classical Pascal, basically impose a bottom-up approach, but other languages do not.

Well, the debate is now over. In order to get IntelliSense to work correctly, bottom-up programming is best. IntelliSense wants every class, every method, every property, every field, every method parameter, every local variable properly defined before you refer to it.

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