How do you program differently in dynamic languages?

Question

How would someone who really knows how to take advantage of dynamic programming languages approach programming differently than someone working in a static language?

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Answer 1

Fast iterations make happier programmers, and they don't come any faster than an interactive interpreter. Good interpreter exploitation gives you sandbox, testing, and prototyping at the same time.

Beware programming by permutation, however. My personal rule of thumb is that it's just because it works doesn't mean it's ready, when you can explain why it works it's ready.