How to check the image file size in jquery?

Question

I have a button while clicking that button I need to get the image file size

function attachPhoto()
{
    var path="http://www.w3schools.com/images/pulpit.jpg";// i need to check size of image
}

<input type="button" style="width:30%" onClick=" attachPhoto()" />

Answer 1

$('image').width() and $('image').height()

Only after it has fully loaded (maybe attach it to the .load() event).