How to detect an escape key being pressed using jQuery

A quick snipped of code that can be used attach a function to the escape key. Great for adding or removing a class. I always attach this to close a popup, for example.

jQuery(document).on( 'keydown', function ( e ) {
	if ( e.keyCode === 27 ) { // ESC
	    // Do Something...
	}
});

Coding Tips, jQuery