til/ruby/turn-key-and-values-arrays-into-a-hash.md

Turn Key And Value Arrays Into A Hash

Let's say you have an array of keys and an array of values:

keys = [:title, :author, :year]
values = ["The Fifth Season", "N. K. Jemisin", 2015]

You can turn them into a hash where the keys of that hash come from keys and are tied in order, one-to-one with the values.

A hash can be created from an array of tuples, where each is a key-value pairing. Knowing this, we can zip the two arrays together and then turn them into a hash like so:

> Hash[keys.zip(values)]
#=> {:title=>"The Fifth Season", :author=>"N. K. Jemisin", :year=>2015}

source