From 6393a9fe66f546ee972c3db5ddb2b1e29572626c Mon Sep 17 00:00:00 2001 From: Ilya Kantor Date: Tue, 20 Oct 2020 11:40:25 +0300 Subject: [PATCH] Update article.md --- 1-js/04-object-basics/07-optional-chaining/article.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/1-js/04-object-basics/07-optional-chaining/article.md b/1-js/04-object-basics/07-optional-chaining/article.md index 8d98c528..dec7332c 100644 --- a/1-js/04-object-basics/07-optional-chaining/article.md +++ b/1-js/04-object-basics/07-optional-chaining/article.md @@ -103,7 +103,7 @@ alert( user?.address.street ); // undefined Please note: the `?.` syntax makes optional the value before it, but not any further. -E.g. in `user?.address.street.name` the `?.` allows `user` to be `null/undefined`, but it's all it does. Further properties are accessed in a regular way. +E.g. in `user?.address.street.name` the `?.` allows `user` to be `null/undefined`, but it's all it does. Further properties are accessed in a regular way. If we want them also be optional, then we'll need to replace more `.` with `?.`. ```warn header="Don't overuse the optional chaining" We should use `?.` only where it's ok that something doesn't exist.