What's a hash, anyway?

It's an ordered, indexed list of valuesIt's an unordered list of key-value pairsIt's another word for an arrayIt's a type of food

That's right! Hashes are unordered lists of key-value pairs. Ordered, indexed lists are also known as arrays.

Whoops! Hashes are unordered lists of key-value pairs. Ordered, indexed lists are also known as arrays.