Thanks to visit codestin.com
Credit goes to developer.mozilla.org

This page was translated from English by the community. Learn more and join the MDN Web Docs community.

View in English Always switch to English

TypeError: "x" has no properties

Сообщение

TypeError: Unable to get property {x} of undefined or null reference (Edge)
TypeError: null has no properties (Firefox)
TypeError: undefined has no properties (Firefox)

Тип ошибки

TypeError.

Что пошло не так?

У null и undefined нет свойств, к которым можно было бы обратиться.

Примеры

js
null.foo;
// TypeError: null has no properties

undefined.bar;
// TypeError: undefined has no properties

Смотрите также