> Imperative collections are harder to reason about, especially for inexperienced programmers. That's a blanket statement that is completely unsubstantiated.

> Imperative collections are harder to reason about, especially for inexperienced programmers. That's a blanket statement that is completely unsubstantiated. In expect that, in reality both have strength and weaknesses and it depends very much on the person. Myself I always find imperative style much more manageable when programming in the small. And before you claim I was biased, I was exposed to functional programming almost from the start (and frankly I'm quite fond of it, but it's just another tool not a religion).