Add Turn Key And Value Arrays Into A Hash as a ruby til

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

@@ -0,0 +1,22 @@
+# Turn Key And Value Arrays Into A Hash
+
+Let's say you have an array of keys and an array of values:
+
+```ruby
+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:
+
+```ruby
+> Hash[keys.zip(values)]
+#=> {:title=>"The Fifth Season", :author=>"N. K. Jemisin", :year=>2015}
+```
+
+[source](https://stackoverflow.com/a/23113943/535590)