Document error at structure

https://javascript.info/structure at this page it says that;
alert("Hello")

[1, 2].forEach(alert);
if you remove semicolon at the first line of code that causes error but I got no error It worked without problem

Open the structure page at javascript.info/structure and reproduce the two JavaScript examples, comparing behavior with and without the first semicolon. Confirm whether the wording or example is inaccurate, then update the relevant tutorial text so it matches the observed behavior and verify the rendered page.

Written by the indexing model from the issue text.