May
19
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Types in programming

The purpose of a type system is to help validate the source code for a program. Without a type system (or some proxy for one) there is nothing to stop a programmer writing nonsense code such as adding apples and oranges. There’s nothing in Javascript or Excel to prevent these mistakes but there is in any statically typed language.

This article will review relevant ideas from general programming that should also apply to a type system for Excel. If you program using a language that uses a type system, you’ll probably have a good idea of the likely topics.

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