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- 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;
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