scripts/routes/pjax.js
function _path(loc) {
	loc = loc || location;
	return loc.pathname + loc.search + loc.hash;
}
function _path(loc) {
	loc = loc || location;
	return loc.pathname + loc.search + loc.hash;
}
function _path ( loc ) { loc = loc || location ; return loc . pathname + loc . search + loc . hash ; }
Return current path

@private
@param {object} [loc]
@returns {string}
Return current path