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0 pointsknrz6y ago0 comments

In JavaScript, Elixir, and Ruby I use flatMap for this purpose. You can return an empty array on the block to “skip” over the element.

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1 comments · 1 top-level

2.7 introduces `Enumerable#filter_map` for that. Example from the NEWS file:

[1, 2, 3].filter_map {|x| x.odd? ? x.to_s : nil } #=> ["1", "3"]

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