Question

The most basic thing in JQuery seems to be to write $(document).ready(…). If I understand the “document” there represents the DOM of the HTML page. Does it have a name in JQuery terms? Is it a “selector”? Is the list of methods I can call on available somewhere in the JQuery documentation?

The same goes for the $(location), what is that called? object?

What other such things (for no better name for now) are available in JQuery?
Where are they documented?

Answer 1

jQuery can “wrap” any DOM object. You can also do it with $(window) and with $(myObj)where myObj is your own variable set like var myObj = document.getElementById("div1");.

When you give jQuery object/element then it’s not using any selectors, but you can have:

$("document").ready(function() {

And this is using selector and works same way.