Comment by nsonha
1 day ago
The rules are not that many, you can omit semicolons everywhere except 1. Before open square bracket 2. Before open parenthesis.
That's it, those are the only 2 edge cases.
1 day ago
The rules are not that many, you can omit semicolons everywhere except 1. Before open square bracket 2. Before open parenthesis.
That's it, those are the only 2 edge cases.
No, there are quite a lot of other edge cases. E.g. you also need them before backticks and in many places in class bodies.
Instead of learning a rule and then memorizing exceptions to it, you could just learn a rule with no exceptions.
I dont need to memorize anything, the 2 rules are inferable from how js works and you will get typescript (not even linter) flagging lines starting with those brackets anyway.
And yet, per the spec, new syntax features are allowed to break ASI:
> As new syntactic features are added to ECMAScript, additional grammar productions could be added that cause lines relying on automatic semicolon insertion preceding them to change grammar productions when parsed.
So really, the rules are “there are currently 2 exceptions and an infinite number allowed to be added at any time”. To me, that’s worth letting prettier auto-insert semicolons when I hit save.