Question

If we call a javascript method myMethod() in a script tag which is before closing body, is it equivalent to calling myMethod() inside jQuery’s document.ready function ? If not, Why ?

Answer 1

From here:

Under the hood: $(document).ready() As you would expect from John
Resig, jQuery’s method for determining when the DOM is ready uses an
assortment of optimizations. For example, if a browser supports the
DOMContentLoaded event (as many non-IE browsers do), then it will fire
on that event. However, IE can’t safely fire until the document’s
readyState reaches “complete”, which is typically later. If none of
those optimizations are available, window.onload will trigger the
event.

These events are independent of a location within the HTML tag, as other event still are going on even at the time of rendering </body>.