Creating dictionaries in JavaScript using arrays and objects

In this video I demonstrate how you can create a simple dictionary-like structure for looking up information first using an array, and then with an object.

Note: I realise it's debatable whether all these abbreviations (e.g., imho = In My Humble Opinion) are actual acronyms or just initialisms, but we're going with it for this example. Also, "acronym" is shorter (i.e., less typing) than "initialism" or "abbreviation".