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

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_825 TILs and counting..._
+_826 TILs and counting..._
 
 ---
 
@@ -686,6 +686,7 @@ _825 TILs and counting..._
 - [Use dotenv In A Non-Rails Project](ruby/use-dotenv-in-a-non-rails-project.md)
 - [Using BCrypt To Create And Check Hashed Passwords](ruby/using-bcrypt-to-create-and-check-hashed-passwords.md)
 - [Who Are My Ancestors?](ruby/who-are-my-ancestors.md)
+- [Wrap Things In An Array, Even Hashes](ruby/wrap-things-in-an-array-even-hashes.md)
 - [Zero Padding](ruby/zero-padding.md)
 
 ### tmux

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

@@ -0,0 +1,37 @@
+# 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)