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`?.` returns `undefined`
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Gleb 2022-03-30 13:51:54 +04:00 • committed by GitHub
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1-js/04-object-basics/07-optional-chaining/article.md
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@ -103,7 +103,7 @@ The code is short and clean, there's no duplication at all.
Here's an example with `document.querySelector`:
```js run
let html = document.querySelector('.elem')?.innerHTML; // will be null, if there's no element
let html = document.querySelector('.elem')?.innerHTML; // will be undefined, if there's no element
```
Reading the address with `user?.address` works even if `user` object doesn't exist: