design patterns - Dealing with nested if then else/nested switch statements

Question

Are there any design patterns/methods/ways to remove nested if then else conditions/switch statements?

I remember coming across some methods used by the Google folks listed in a Google code blog post. Can’t seem to find it now though

Answer 1

Have you read this on flattening arrow code from Coding Horror?

You can replace throw with return or goto if you're using a language without exceptions.