docs: Update README.md (#520)

* Update README.md docs: 04-updating-arrays-and-objects, add `let obj = { foo: { bar: 'old' } };` for more clarity * Apply suggestions from code review --------- Co-authored-by: Rich Harris <[email protected]>
sveltejs · Dec 15, 2023 · da3e539 · da3e539 · vercel · Dec 15, 2023
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Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/content/tutorial/01-svelte/02-reactivity/04-updating-arrays-and-objects/README.md b/content/tutorial/01-svelte/02-reactivity/04-updating-arrays-and-objects/README.md
@@ -38,8 +38,9 @@ A simple rule of thumb: the name of the updated variable must appear on the left
 
 ```js
 /// no-file
+const obj = { foo: { bar: 1 } };
 const foo = obj.foo;
-foo.bar = 'baz';
+foo.bar = 2;
 ```
 
 ...won't trigger reactivity on `obj.foo.bar`, unless you follow it up with `obj = obj`.