Function arrayLikeKeys

src/shared/functions/toArray.js:387–406

* Creates an array of the enumerable property names of the array-like `value`. * * @private * @param {*} value The value to query. * @param {boolean} inherited Specify returning inherited property names. * @returns {Array} Returns the array of property names.

(value, inherited)

 * @returns {Array} Returns the array of property names.
 */
function arrayLikeKeys(value, inherited) {
  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
  // Safari 9 makes `arguments.length` enumerable in strict mode.
  const result =
    isArray(value) || isArguments(value) ? baseTimes(value.length, String) : [];

  const length = result.length;

  const skipIndexes = !!length;

  for (const key in value) {
    if (
      (inherited || hasOwnProperty.call(value, key)) &&
      !(skipIndexes && (key === "length" || isIndex(key, length)))
    ) {
      result.push(key);
    }
  }
  return result;
}

/**
 * The base implementation of `getTag`.