Toggle and initialise a menu's state

toggle-and-init-menu.js

var menuVisible = false;

// Can be used with the components manager. If so, uncomment out the lines below to add & remove event listeners
function initMenu() {
	if (document.querySelector(menu)) {
		if (menuVisible) {
			// app.components.addListeners();
			document.querySelector(menu).style.display = block;
		} else {
			// app.components.removeListeners();
			document.querySelector(menu).style.display = none;
		}
	}
}

function toggleMenu() {
	if (document.querySelector(menu)) {
		if (menuVisible) {
			// app.components.removeListeners();
			document.querySelector(menu).style.display = none;
			menuVisible = false;
		} else {
			// app.components.addListeners();
			document.querySelector(menu).style.display = block;
			menuVisible = true;
		}
	}
}