react native new Map() 컬랙션 사용하기

const [state, setState] = React.useState(new Map());

const add = (key, value) => {
  setState((prev) => new Map([...prev, [key, value]]));
};


const upsert = (key, value) => {
  setState((prev) => new Map(prev).set(key, value));
}

const delete = (key) => {
  setState((prev) => {
    const newState = new Map(prev);
    newState.delete(key);
    return newState;
  });
}

const clear = () => {
  setState((prev) => new Map(prev.clear()));
}