I don't think it's necessarily a bad thing, but it's kind of odd to see an article on the front page of HN that amounts to a less-concise version of the documen

I don't think it's necessarily a bad thing, but it's kind of odd to see an article on the front page of HN that amounts to a less-concise version of the documentation for a very simple to understand language feature (the doc page has four or five sentences and is just as easy to understand).