Simple JS Class Toggle

toggle.js

const eventManager = (listeners, app={}) => (eventData, listener) => {
    try {
        listeners[listener](eventData, app);
    }
    catch(e) {
        console.trace(e);
    }
}

const toggle = classElement => {
    const {element, cls} = classElement;
    element.classList.toggle(cls);
}

window.ev = eventManager({toggle});

toogle.html

<li onclick="return ev({element: this, cls: 'make-awesome'}, 'toggle');">Hello</li>
<!-- ->> <li onclick="return ev({element: this, cls: 'make-awesome'}, 'toggle');" class="make-awesome">Hello</li> -->