[JavaScript] Find deep data in an object.

findDeepData.js

/**
 * Find deep data in an object.
 *
 * @param {object} data
 * @param {string} path
 * @return {*}
 */
function findDeepData(data, path) {
  const keysArr = path.split(".");

  for (let i = 0; i < keysArr.length; ++i) {
    if (typeof data[keysArr[i]] === "undefined") {
      throw new Error("Wrong path: " + path);
    } else {
      data = data[keysArr[i]];
    }
  }

  return data;
}