Function objectSet

src/common/object.js:25–38

(obj, rawKey, val, retParent)

 * @return {Object} the original object or the parent of `val` if retParent is set
 */
export function objectSet(obj, rawKey, val, retParent) {
  rawKey = normalizeKeys(rawKey);
  let res = obj || {};
  let key;
  for (let i = 0; (key = rawKey[i], i < rawKey.length - 1); i += 1) {
    res = res[key] || (res[key] = {});
  }
  if (val === undefined) {
    delete res[key];
  } else {
    res[key] = val;
  }
  return retParent ? res : obj;
}

/**
 * @param {{}} obj