js Objsect hasIwnProperty


`Object.hasOwn()` is intended as a replacement for `[Object.hasOwnProperty()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty)`




> [Object.prototype.hasOwnProperty() - JavaScript | MDN](https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty)






