ruby / ruby/rbs

How can we write `Array#zip` with arbitrary number of arguments?

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Dominant language
Ruby
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Description

The current signature for Array#zip accepts exactly one array argument, but the actual zip acceptes one or more arrays. Can we write a signature for this?

pp [1, 2, 3].zip(%w(foo bar baz), [:foo, :bar, :baz])
#=> [[1, "foo", :foo], [2, "bar", :bar], [3, "baz", :baz]]

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Research direction

The issue names Array#zip but no files or tests. Start by locating the current Array#zip signature and checking how RBS represents arguments of variable length; done means the shown call with two arrays is accepted while the existing one-array behavior remains valid.

Written by the indexing model from the issue text.

Assessment

Tech stack
ruby
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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