javascript deep clone

clone.mjs

const clone = (objIn) => {
  if (objIn === null || typeof (objIn) !== 'object') {
    return objIn; // must be object to clone, otherwise we return value
  }
  const objOut = Array.isArray(objIn) ? [] : {};
  Object.keys(objIn).forEach((key) => {
    objOut[key] = clone(objIn[key]);
  });
  return objOut;
};

export default clone;