| var isPrototype = require('./_isPrototype'), | |
|     nativeKeys = require('./_nativeKeys'); | |
| 
 | |
| /** Used for built-in method references. */ | |
| var objectProto = Object.prototype; | |
| 
 | |
| /** Used to check objects for own properties. */ | |
| var hasOwnProperty = objectProto.hasOwnProperty; | |
| 
 | |
| /** | |
|  * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. | |
|  * | |
|  * @private | |
|  * @param {Object} object The object to query. | |
|  * @returns {Array} Returns the array of property names. | |
|  */ | |
| function baseKeys(object) { | |
|   if (!isPrototype(object)) { | |
|     return nativeKeys(object); | |
|   } | |
|   var result = []; | |
|   for (var key in Object(object)) { | |
|     if (hasOwnProperty.call(object, key) && key != 'constructor') { | |
|       result.push(key); | |
|     } | |
|   } | |
|   return result; | |
| } | |
| 
 | |
| module.exports = baseKeys;
 |