Currently I have this code implemented, but it seems to be causing an issue as it throws a "document is not defined" error.
export default function Modal() {
const [modal, setModal] = useState(false);
const toggleModal = () => {
setModal(!modal);
};
// THE ERROR OCCURS HERE
if (modal) {
document.body.classList.add('active-modal');
} else {
document.body.classList.remove('active-modal');
}
While I haven't tested it, I suggest placing the if statement within the useEffect() hook. It seems that initially the document object is not recognized by nextJs, and the same applies to the global window object!
When dealing with side-effects, it's best practice to utilize the useEffect() hook. This hook will run after the component has been mounted on the DOM.
When using Nextjs, you have the ability to prevent scrolling by utilizing the following code snippet:
document.documentElement.style.overflow = "hidden"
Furthermore, you can restore the scrolling functionality by executing:
document.documentElement.style.overflow = ""
This will enable scrolling once again on the webpage.
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