Function isKey

test/babel.js:21952–21961

* Checks if `value` is a property name and not a property path. * * @private * @param {*} value The value to check. * @param {Object} [object] The object to query keys on. * @returns {boolean} Returns `true` if `value` is a property name, else `false`.

(value, object)

	 * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
	 */
	function isKey(value, object) {
	  if (isArray(value)) {
	    return false;
	  }
	  var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
	  if (type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol(value)) {
	    return true;
	  }
	  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);
	}

	module.exports = isKey;