domenic at domenicdenicola.com (2014-02-04T21:23:59.454Z)
It seems unfortunate that `let` and `const` have different usage rules from
`var`. It seem strange that `var` is considered a statement and not
declaration as per:
http://people.mozilla.org/~jorendorff/es6-draft.html#sec-ecmascript-language-statements-and-declarations
Generally, I've always thought of:
`if (x) ...` as equivalent to `if (x) { ... }`
Does this restriction on `let`/`const` enable anything?
It seems unfortunate that "let" and "const" have different usage rules from "var". It seem strange that "var" is considered a statement and not declaration as per: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-ecmascript-language-statements-and-declarations Generally, I've always thought of: "if (x) ..." as equivalent to "if (x) { ... }" Does this restriction on let/const enable anything? On Wed, Jan 29, 2014 at 10:31 PM, Erik Arvidsson <erik.arvidsson at gmail.com>wrote: > It falls out of the grammar. > > IfStatement can only contain Statement which does not include Declaration > without going through a BlockStatement. > > > On Wed, Jan 29, 2014 at 9:57 PM, John Lenz <concavelenz at gmail.com> wrote: > >> I have some old notes that says that "let" can't be used in some >> context where a var could like: >> >> if (a) let x = 2; >> >> In my perusal of the spec I don't see that this is the case now. Can >> someone confirm that for me? >> >> _______________________________________________ >> es-discuss mailing list >> es-discuss at mozilla.org >> https://mail.mozilla.org/listinfo/es-discuss >> >> > > > -- > erik > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20140130/84c805ef/attachment.html>