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var isArrayLike = require('../internal/isArrayLike'),
isNative = require('../lang/isNative'),
isObject = require('../lang/isObject'),
shimKeys = require('../internal/shimKeys');
/* Native method references for those with the same name as other `lodash` methods. */
var nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys;
/**
* Creates an array of the own enumerable property names of `object`.
*
* **Note:** Non-object values are coerced to objects. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.keys)
* for more details.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.keys(new Foo);
* // => ['a', 'b'] (iteration order is not guaranteed)
*
* _.keys('hi');
* // => ['0', '1']
*/
var keys = !nativeKeys ? shimKeys : function(object) {
var Ctor = object != null && object.constructor;
if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
(typeof object != 'function' && isArrayLike(object))) {
return shimKeys(object);
}
return isObject(object) ? nativeKeys(object) : [];
};
module.exports = keys;
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