x/website: Tutorial contains stale code/advice (no need to seed rand anymore)

[medkhabt]

What is the URL of the page with the issue?

https://go.dev/doc/tutorial/random-greeting

What is your user agent?

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Screenshot

What did you do?

--

What did you expect to see?

I expect to not see that paragraph. I assumed that there was an init() function for older versions of the code but forgot to change also the paragraph that explains the code.
Or maybe I am missing something about the language, I am new to GO.

What did you see instead?

The paragraph inside the blue border of the screenshot.

Have a great day!

[dr2chase]

@golang/tools-team
Looks like an issue to me, too.

[ohmyfolly]

I think it would be worth adding additional context rather than completely removing. I happened to be working through this example with go1.19.5 which seems to not init() the rand function, and as such had some mild confusion when my code matched but the output did not (fixed by adding a seed the example code did not have).

Installing 1.20.5 seems to have solved the seed issue, but I think for newer users it may be nice to have this section call out the change of functionality from version X to version X and that older versions require manual init seeding.

[findleyr]

CC @ansaba