Add test for optional route parameter

[smarts]

Test for #40

[3imed-jaberi]

Can you use const/let over var !!

It does not add anything to the set of tests but it can add to attracts attention to optional routes.

[smarts]

Sure. Both styles were in the code already, so @3imed-jaberi how would you feel about me doing a sweep and fixing it everywhere in this file?
On an unrelated note as a bit of constructive criticism: in the future, a simple . or ? is probably better. Using !! comes across a bit aggressive and could alienate contributors.

[niftylettuce]

@smarts no worries - they didn't mean to alienate in any way, @3imed-jaberi is excited and happy to see your contributions! 🎉 🎉

[smarts]

Interesting, this test passes now. Looks like the bug has been fixed.

[niftylettuce]

thanks @smarts

[smarts]

Happy to help. Thanks to you @niftylettuce and @3imed-jaberi as well!

[3imed-jaberi]

@smarts, sorry ... I didn't mean to insult or belittle or anything negative ... I just tried to provide a comment summarizing the situation in this PR and I wanted to say thank you for your contribution and that your work provides a good example ..