| function _defaults(obj, defaults) { | |
| var keys = Object.getOwnPropertyNames(defaults); | |
| for (var i = 0; i < keys.length; i++) { | |
| var key = keys[i]; | |
| var value = Object.getOwnPropertyDescriptor(defaults, key); | |
| if (value && value.configurable && obj[key] === undefined) Object.defineProperty(obj, key, value); | |
| } | |
| return obj; | |
| } | |
| export { _defaults as _ }; | |