Please read http://blog.izs.me/post/2353458699/an-open-letter-to-javascr... again, especially the restricted production part. Using semicolons everywhere doesn't cover your ass in those cases. Granted, I've never ever encountered these, but still -- it's not as simple as you make it out to be.
> Granted, I've never ever encountered these, but still -- it's not as simple as you make it out to be.
There's one and only one of these cases which I've seen (and I'd see) happen: `return`, for users of Allman, while that is completely nutty (just as Allman) some people will write:
return
{
key: value
};
even though they're defining an object literal not a scope. The result is returning immediately (undefined) and dropping the object in space.
`throw` would be really weird, it may happen with a labelled break or continue but I've yet to see those ever used at all (so a user of these probably wouldn't fuck up the label, plus that label would become a bareword which most static analyzers would trivially see) and postfix operators outside of continuated expressions (e.g. function calls) are unlikely to be split.
I've been bitten more often by not having inserted semicolons than by any of those.
That's covered by other really common coding standards, eg. "put braces and brackets on the same line as the token that comes before them", "don't add linebreaks unless necessary to stay under 80 chars", and "break after binary operators rather than before them".
The point's to minimize the amount of additional complexity that developers have to memorize. The set of rules above is very similar to what you see in pretty much any Algol-derived language; most developers already have it burned into their fingers. The set of rules necessary to code safely without semicolons is very specific to JavaScript, and to a very idiosyncratic style of JS at that.
There's one and only one of these cases which I've seen (and I'd see) happen: `return`, for users of Allman, while that is completely nutty (just as Allman) some people will write:
even though they're defining an object literal not a scope. The result is returning immediately (undefined) and dropping the object in space.`throw` would be really weird, it may happen with a labelled break or continue but I've yet to see those ever used at all (so a user of these probably wouldn't fuck up the label, plus that label would become a bareword which most static analyzers would trivially see) and postfix operators outside of continuated expressions (e.g. function calls) are unlikely to be split.
I've been bitten more often by not having inserted semicolons than by any of those.