Can you please tell me how can I update the states of prevMessages and messages in my function? Now i get error "cannot get id of undefined".
Error in this line: const msgID = prevMessages.length ? parseInt(prevMessages[0].id) : parseInt(messages[0].id);
const debounce = (func, wait) => {
let timeout;
return (() => {
if (timeout) {
clearTimeout(timeout);
}
timeout = setTimeout(() => func(), wait)
})();
}
const changeHandler = (e) => {
console.log(e);
if(e.target.scrollTop < 1) {
const msgID = prevMessages.length ? parseInt(prevMessages[0].id) : parseInt(messages[0].id);
console.log(msgID);
socket.emit('getPrevMessages', {roomId, msgID});
//e.stopPropagation();
}
}
const debouncedChangeHandler = useCallback((e) => debounce(() => changeHandler(e), 250),[]);
Thanks.