$(document) vs. $(“document”)

Question

Is there any difference between: $(document) and $(\"document\")?

EDIT: also when into the .ready() e.g. $(\"document\")

Answer 1

document is a pre-made global variable that is the representation of the current HTML document, short for window.document.

$("document"), as @BoltClock pointed out, would be using that string as a selector for a element.