Toggle class to an element by click another element

Question

I want to click on an element to toggle a class being referenced on a completely unrelated element (not a child, parent or sibling)

For example, initially the code w

Answer 1

Try this:

document.querySelector('div.navigation').classList.toggle('open');

This will work if you only have one div element that has the class navigation. It would be better to give it an id, for example id=navigation