Get screen width, height, and orientation

check-size-and-orientation.js

// ----------------------------------------------
// Detect screen orientation
// ----------------------------------------------
var deviceOrientation = ''; // Declare globally to use throughout
function detectOrientation () {
	var windowWidth = $(window).height();
	var windowHeight = $(window).width();
	if (windowWidth > windowHeight) {
		deviceOrientation = 'landscape';
	} else {
		deviceOrientation = 'portrait';
	}
}
window.addEventListener('resize', function () {
	detectOrientation();
});