Variables
$(""), $(null), $(undefined), $(false)
$(html) ->​ $(array)
$(html, props)
$(#id)
$(expr, $(.​.​.​))
$(expr, context)

(which is just equivalent to: $(context).find(expr)

$(DOMElement)
$(function)

Shortcut for document ready

[ owner, key, value ] args

Always use camelCase key (gh-2257)

[ owner, { properties } ] args
regular nodes (via `this.​ownerDocument`), window

(via `this.document`) & document (via `this`).

Files
protocol always yields status 0; see #8605, #14207