I actually had a bug in a game jam freshman year because of this. It was java, so there was a lot of questionable decisions going on, but adding the semicolon fixed it!

[–] Scoopta 3 points 4 months ago (1 children)

...I want details. Java is my most used language and I want to know lol

[–] [email protected] 1 points 4 months ago (1 children)

… now that I’m thinking harder it may have been a colon? The real problem was that we’d only been programming a few months at that point and were pretty good at accidentally fucking up syntax

[–] Scoopta 1 points 4 months ago

Ah, I mean syntax issues trigger compiler errors though. I'm not sure of one that compiles but has odd behavior... except the increment/decrement operators. Maybe I'm just not remembering one

[–] [email protected] 5 points 4 months ago (1 children)

Semicolons are technically optional in JS, but there are some rare cases where omitting them can result in different behaviour.

And this is why you should enforce code style, kids. Preferably with an automated tool.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

I'm on my phone rn so can't format well, but one such example is:

const thing = require("module")

(async () => { something })()

without a ; at the end of the first line, JavaScript will try to do require("module")() instead

[–] jwt 1 points 4 months ago

I don't get the semicolon either, may be a language barrier. used question marks like this for optional chaining in typescript though...