A Promise-like object (or “thenable”) that resolves when the document is ready.
Handles errors thrown synchronously in functions wrapped in jQuery().
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
Creates a new copy of jQuery whose properties and methods can be modified without affecting the original jQuery object.
Relinquish jQuery’s control of the $ variable.
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.
Holds or releases the execution of jQuery’s ready event.