2 var toPrimitive = require('../internals/to-primitive');
3 var definePropertyModule = require('../internals/object-define-property');
4 var createPropertyDescriptor = require('../internals/create-property-descriptor');
6 module.exports = function (object, key, value) {
7 var propertyKey = toPrimitive(key);
8 if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
9 else object[propertyKey] = value;