Best way to turn an array into a 2D array in Ruby [duplicate]

Question

Say I have an array:

s = ["Abc", 123, "Abc", 123, "Abc", 123, "Abc", 123, "Abc", 123]

What would be the best way to turn it into

array = [["Abc",123]["Abc",123]["Abc",123]["Abc",123]["Abc",123]

...and it's not just the missing commas. As an aside, "s", as in "string", is not the best name for an array. "a", "arr" or "array" would be more fitting. — Cary Swoveland
– Cary Swoveland, Commented Apr 24, 2018 at 6:29

mu is too short · Accepted Answer · 2019-03-24 20:31:37Z

2

Use Enumerable#each_slice:

each_slice(n) { ... } → nil
each_slice(n) → an_enumerator
Iterates the given block for each slice of n elements. If no block is given, returns an enumerator.

So you'd say:

s.each_slice(2).to_a

or

s.each_slice(2).entries

edited Mar 24, 2019 at 20:31

answered Apr 24, 2018 at 4:14

mu is too short

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