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						- 'use strict';
 - 
 - var $defineProperty = require('es-define-property');
 - 
 - var hasPropertyDescriptors = function hasPropertyDescriptors() {
 - 	return !!$defineProperty;
 - };
 - 
 - hasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() {
 - 	// node v0.6 has a bug where array lengths can be Set but not Defined
 - 	if (!$defineProperty) {
 - 		return null;
 - 	}
 - 	try {
 - 		return $defineProperty([], 'length', { value: 1 }).length !== 1;
 - 	} catch (e) {
 - 		// In Firefox 4-22, defining length on an array throws an exception.
 - 		return true;
 - 	}
 - };
 - 
 - module.exports = hasPropertyDescriptors;
 
 
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