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Merge pull request #2015 from leviding/patch-21

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Ilya Kantor 2020-09-05 17:06:18 +03:00 • committed by GitHub
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1-js/04-object-basics/07-optional-chaining/article.md
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@ -80,7 +80,7 @@ If there's no variable `user` at all, then `user?.anything` triggers an error:
// ReferenceError: user is not defined // ReferenceError: user is not defined
user?.address; user?.address;
``` ```
There must be `let/const/var user`. The optional chaining works only for declared variables. There must be `let/const/var user`. The optional chaining works only for declared variables.
```` ````
## Short-circuiting ## Short-circuiting