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Feature #4539

Array#zip_with

Added by citizen428 (Michael Kohl) about 9 years ago. Updated 6 months ago.

Status:
Assigned
Priority:
Normal
Target version:
-
[ruby-core:<unknown>]

Description

Inspired by Haskell's zipWith function, I hacked on together for Ruby:

[1,2,3].zip_with([6,5,4], :+) #=> [7, 7, 7]
[1,2,3].zip_with([6,5,4]) { |a,b| 3*a+2*b } #=> [15, 16, 17]

So far I only have a Ruby version of it:

https://gist.github.com/731702b90757e21cadcb

My questions:

  1. Would this method be considered a worthwhile addition to Array?

  2. I've never hacked on the C side of Ruby (read some parts of the source though) and my C is quite rusty. I'd like to change that, would somebody be willing to help me turn this into a proper patch?


Related issues

Related to Ruby master - Feature #5044: #zip with block return mapped resultsRejectedmatz (Yukihiro Matsumoto)Actions
Related to Ruby master - Feature #6817: Partial applicationOpenmatz (Yukihiro Matsumoto)Actions
Related to Ruby master - Feature #16261: Enumerable#each_splat and Enumerator#splatRejectedActions

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