packages/main-nav/src/js/module.js
function listenHandler( event ) {
				var handler = rawHandler.apply( this, arguments );
				if ( handler === false) {
					event.stopPropagation();
					event.preventDefault();
				}
				return( handler );
		}
function listenHandler( event ) {
				var handler = rawHandler.apply( this, arguments );
				if ( handler === false) {
					event.stopPropagation();
					event.preventDefault();
				}
				return( handler );
		}
function listenHandler ( event ) { var handler = rawHandler . apply ( this , arguments ) ; if ( handler === false ) { event . stopPropagation ( ) ; event . preventDefault ( ) ; } return ( handler ) ; }
Using local functions instead of anonymous for event handler
Using local functions instead of anonymous for event handler