Devoxx - filter, partition and offset (original) (raw)

Stephen Colebourne scolebourne at joda.org
Wed Apr 3 09:24:10 PDT 2013

On 3 April 2013 17:13, Richard Bair <richard.bair at oracle.com> wrote:

Fwiw, I'd expect filter to retain elements that satisfy a predicate. Any other method would feel like a double negative to me. Which is exactly how it works. And backwards from what I would expect and hence, difficult to remember.

I think its the conflict between what I think of as the concept of "filtering" (getting rid of stuff) and what I see in lambda (retaining stuff) that is making it hard for me to remember too.

But I also recognise that others will have their mental model aligned the other way around, so the method matches their conceptual model. I guess it like left-handers feel in a right handed world... and I don't like it.

Stephen

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