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Adds mapWithIndex (map with a generated index) #68

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Merged
merged 1 commit into from
Jul 26, 2016
Merged

Adds mapWithIndex (map with a generated index) #68

merged 1 commit into from
Jul 26, 2016

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damncabbage
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mapWithIndex :: forall a b. (Int -> a -> b) -> Array a -> Array b

This PR came about as a result of asking in the Gitter channel to see if anyone else writes their own version of this function: https://gitter.im/purescript/purescript?at=5785c87959cfbd4c5e93113f

(CC: @dkoontz, @felixSchl)

@damncabbage
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(This is already called imap in the Haskell vector package, in case you're not happy with the name.)

@garyb
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garyb commented Jul 21, 2016

mapWithIndex would be my preferred name 👍 we use imap for invariant functors: https://pursuit.purescript.org/packages/purescript-invariant/1.0.0/docs/Data.Functor.Invariant#v:imap

@paf31
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paf31 commented Jul 25, 2016

Looks good! Agreed on the name.

@garyb garyb merged commit 90b1c3d into purescript:master Jul 26, 2016
@kl0tl kl0tl mentioned this pull request Dec 28, 2020
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@damncabbage @garyb @paf31