jQuery attribute selector: [x=y] or [x=z]

I have the following jQuery selector:

$("a[href^='http://'],a[href^='https://']");

Is it possible to change this so that I don't need to specify a[href^= twice?

For example, something like:

$("a[href^='http://'||'https://']");

EDIT: My example of http and https should not be taken literally. I could be looking for values starting with y and z instead.