Add Wrap Things In An Array, Even Hashes as a ruby til

ruby/wrap-things-in-an-array-even-hashes.md

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+# Wrap Things In An Array, Even Hashes
+
+I've always used `Kernel::Array` to wrap things in an array. It works great.
+
+```ruby
+> Array(nil)
+#=> []
+> Array(1)
+#=> [1]
+> Array(["hello", "world"])
+#=> ["hello", "world"]
+```
+
+Except with hashes, it might not do what you expect when given a hash.
+
+```ruby
+> Array({a: 1, b: 2})
+#=> [[:a, 1], [:b, 2]]
+```
+
+I just wanted the hash wrapped in an array, not turned into an array of tuples.
+
+The `Array` class has a method `#wrap` which behaves similarly to
+`Kernal::Array` while also handling hashes in the way I was wanting.
+
+```ruby
+> Array.wrap(nil)
+#=> []
+> Array.wrap(1)
+#=> [1]
+> Array.wrap(["hello", "world"])
+#=> ["hello", "world"]
+> Array.wrap({a: 1, b: 2})
+#=> [{a: 1, b: 2}]
+```
+
+[source](https://devdocs.io/rails~5.2/array#method-c-wrap)