What is the best way to replace or substitute if..else if..else trees in programs?

Question

This question is motivated by something I\'ve lately started to see a bit too often, the if..else if..else structure. While it\'s simple and has its uses, somet

Answer 1

There's two parts to that question.

How to dispatch based on a value? Use a switch statement. It displays your intent most clearly.

When to dispatch based on a value? Only at one place per value: create a polymorphic object that knows how to provide the expected behavior for the value.