for (let i = 0; i < chatingRooms.length; i++) {
let chatRoom = chatingRooms[i];
if (chatRoom.roomId == roomId) {
chatingRooms[i] = chatingRooms[0];
chatingRooms[0] = chatRoom;
}
}
하루 고생하면 코드가 나 대신 일해준다.
for (let i = 0; i < chatingRooms.length; i++) {
let chatRoom = chatingRooms[i];
if (chatRoom.roomId == roomId) {
chatingRooms[i] = chatingRooms[0];
chatingRooms[0] = chatRoom;
}
}