Function arrayLikeKeys

test/babel.js:27840–27863

* 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) {
	  var isArr = isArray(value),
	      isArg = !isArr && isArguments(value),
	      isBuff = !isArr && !isArg && isBuffer(value),
	      isType = !isArr && !isArg && !isBuff && isTypedArray(value),
	      skipIndexes = isArr || isArg || isBuff || isType,
	      result = skipIndexes ? baseTimes(value.length, String) : [],
	      length = result.length;

	  for (var key in value) {
	    if ((inherited || hasOwnProperty.call(value, key)) && !(skipIndexes && (
	    // Safari 9 has enumerable `arguments.length` in strict mode.
	    key == 'length' ||
	    // Node.js 0.10 has enumerable non-index properties on buffers.
	    isBuff && (key == 'offset' || key == 'parent') ||
	    // PhantomJS 2 has enumerable non-index properties on typed arrays.
	    isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset') ||
	    // Skip index properties.
	    isIndex(key, length)))) {
	      result.push(key);
	    }
	  }
	  return result;
	}

	module.exports = arrayLikeKeys;