Does 'new Image()' allow for use of cache (JavaScript)

Question

If I use new Image() to load up an image in JavaScript, will it use a cached version if possible, or will it always load up a fresh copy?

var imgObj = new Image();
imgObj.src = 'http://...';
imgObj.onload = function (loadedImg) { }

Answer 1

One thing to note is that if you want onload to always happen (even when it's in cache) you should define onload before src.

var imgObj = new Image();
imgObj.onload = function (loadedImg) { }
imgObj.src = 'http://...';

Answer 2

It'll load from cache if it's there, the same way a <img> in your markup would.