Wrong code in error handling chapter "Error handling, try catch"

There is a wrong code in the Error Handling chapter. Refer to the image and code below:

try {
  user = { /*...*/ };
} catch (err) {
  if (err instanceof ReferenceError) {
    alert('ReferenceError'); // "ReferenceError" for accessing an undefined variable
  }
}

This should output as follows in a browser environment.

and, nothing should be there in the terminal in Node js env. as nothing is being returned or logged.
But, as per the website when you ran the code, it shows this:

For reference it's the second code snippet under: https://javascript.info/try-catch#rethrowing

It might be using "use strict" internally, but its quite misleading.

打开 Error Handling 章节中“Rethrowing”下的第二个代码片段，并在浏览器和 Node.js 中运行所示示例。将观察到的输出与 issue 的屏幕截图进行比较，然后修正该片段或其说明，使文档所述的行为与两个环境中的行为一致。