Kevin Smith wrote:
1JS wants new syntax to be its own opt-in.
Right - except of course `let[i] = j;` isn't new syntax.
Of course, you cited only one sentence I wrote and cut the rest where I
adverted to the problem. But is it a real problem?
In non-strict, `let` is either an identifier, or it isn't. If it's
an identifier, then let it be a full-fledged identifier, not some
half-man, half-beast. I think it's best to avoid situations where we
have to say things like "it is, except when it's not".
What if we just say "use let in ES6"? The incompatible change is nasty
in theory, but in practice it may be a tree falling in a forest.
This is the argument, which you did not engage because you assumed a
conclusion or just preferred not to have to worry. I sympathize! But the
position we arrived at does not require assuming anything.
Implementations and search engines can try this out and see if it bites
back.
/be
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