Nov 25, 2025
diff --git a/1-js/09-classes/01-class/article.md b/1-js/09-classes/01-class/article.md

 ## Class fields

 ```warn header="Old browsers may need a polyfill"
 Class fields are a recent addition to the language.
 ```

 Previously, our classes only had methods.
 Class fields are a standard part of the language and are supported in modern browsers.

 "Class fields" is asyntaxthat allows to add any properties.
 They provide a cleansyntaxfor declaring properties directly inside the class body, without placing them inside the constructor.

 For instance, let's add `name` property to `class User`:
Original file line number	Diff line number	Diff line change
Expand Up		@@ -291,13 +291,9 @@ Such features are easy to remember, as they resemble that of literal objects.

		## Class fields

		```warn header="Old browsers may need a polyfill"
		Class fields are a recent addition to the language.
		```

		Previously, our classes only had methods.
		Class fields are a standard part of the language and are supported in modern browsers.

		"Class fields" is asyntaxthat allows to add any properties.
		They provide a cleansyntaxfor declaring properties directly inside the class body, without placing them inside the constructor.

		For instance, let's add `name` property to `class User`:

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