[spookthesunset]

That doesn’t help people who stumble upon this when searching for the problem. All the “look it up” response does is make sure the search results are a bunch of content saying “look it up”, which isn’t really that helpful.

[llanowarelves]

That's a classic.

Get my hopes up finding an old forum post asking my question, hoping to find answers. All the answers are "use Google/etc", which is how I got there.

[nkozyra]

It is explained fairly early in the article.

This used to be done quite a lot in the early JS days when scope was kind of thrown out the window (no pun) and you just did whatever dirty thing you needed to in order to make a page work.