Comment by evantbyrne

Maybe I'll write a blog post on it someday. It depends on the exact method you use to build the calendar my man. You could just change classes and attributes. Or you could use a variable within the scope of where you initialize the component. I wouldn't re-render the whole thing to apply changes, but that's up to you. The nice thing about using vanilla APIs is you don't typically have to worry about thrashing the DOM with unnecessary renders because that's rarely (perhaps never?) the easiest way to patch changes to it, unlike in React where useMemo is prevalent.