> for loop The language matters a lot here too: > For instance, map and filter typically involve pure functions, which are easier to reason about, and they av

> for loop The language matters a lot here too: > For instance, map and filter typically involve pure functions, which are easier to reason about, and they avoid an entire class of off-by-one iterator bugs. That's not how "for loops" work in many programming languages! Python being the most obvious, and by some measures the largest programming language of all.