Thanks for the tip on the “in:” qualifier. I’m glad I wasn’t screwing something up. I’ll have to try that new approach. It seems like you’re somehow referencing documentation of which I’m unaware. Could you point me to whatever reference it is you’re using? I’ve been doing things just guessing and searching the forums for lack of better information.
As to the JavaScript bit, I suppose it was silly of me to expect code playgrounds to enforce the language specification. I’m used to languages not being so loose, but then I suppose this is JavaScript we’re talking about. I should have known better. Thanks!