Jorge <mailto:[email protected]>
January 20, 2012 7:15 PM
Sorry, I don't follow, with "that" you mean "something else" or "the
acute accent" ?
Oh, not ' but the diacritical on é, you mean?
How do I type that on a US or UK keyboard? We are not going to use
non-ASCII characters, so you are still barking up the wrong tree.
/be
str = ´agudo´
Error
• message: "Invalid character '\u0180'"
Brendan Eich <mailto:[email protected]>
January 20, 2012 6:59 PM
Jorge <mailto:[email protected]>
January 20, 2012 6:46 PM
1.- There are not quasi literals in the language yet
No, quasi-literals are approved for ES6. Already.
2.- quasi literals could as well use something else (the acute accent
?) instead
No, that is used for string literals, since JS1 in 1995!
3.- a shorter function syntax is almost at the top in the
programmers' wish list for ES.next (unlike quasis)
So what? No one except you is asking for ` and quasis won. Please
adjust your expecations accordingly.
Isn't it -perhaps- too soon to reject ` for functions in favor of
quasis ?
No.
/be
Jorge <mailto:[email protected]>
January 20, 2012 1:22 AM
Has a backtick/accent grave ever been considered and/or rejected ?
Anonymous function expression:
setTimeout( '(){ ... }, 1e3);
Named function expression:
setTimeout( 'name(){ ... }, 1e3);
Declarations:
`(){ ... } // error: can't declare anonymous functions
`name(){ ... }
Brendan Eich <mailto:[email protected]>
January 19, 2012 11:27 AM
Axel Rauschmayer <mailto:[email protected]>
January 19, 2012 9:31 AM
Rationale: wouldn’t freezing by default be OK for 98% of the cases? If
you want anything else, you can use a traditional function. Then the
above syntax as the only function shorthand would be OK.
First, #(params) { body } was proposed by Arv and Alex:
http://wiki.ecmascript.org/doku.php?id=strawman:shorter_function_syntax
Arv and Alex feel strongly that the shorter function syntax (anything
shortening 'function' syntax) must not freeze by default.
There was lack of clarity about whether completion value as implicit
return value was part of the proposal. If so, controvery, since there
is a completion value leak hazard. TC39 seems to agree the solution
there is something with different look & feel, such as block-lambdas.
But, making a one-char grawlix shorthand for 'function' while still
requiring 'return' is not considered enough of a shorthand. A possible
cure here is to support an alternative body syntax: #(params) expr.
However, this inverts precedence if done naively. It also runs into
trouble trying to prefer an object literal over a block statement.
I've worked on both of these in the context of
http://wiki.ecmascript.org/doku.php?id=strawman:arrow_function_syntax
This superseded shorter_function_syntax, but ran into grammatical
issues that have vexed it.
But notice that throughout this, no one advancing a proposal advocated
freezing by default. JS developers use function objects as mutable
objects. Not just to set .prototype, also to decorate with ad-hoc and
meta-data properties. Freezing is not wanted by default.
I agree that for block-lambdas it's easier to say "freeze by default".
For merely "shorter function syntax", no. Functions are mutable
objects by default in JS. This matters for minifiers, which may not be
able to see all the mutations but would love to use shorter syntax for
'function' syntax, blindly.
/be
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Axel Rauschmayer <mailto:[email protected]>
January 19, 2012 9:31 AM
Rationale: wouldn’t freezing by default be OK for 98% of the cases? If
you want anything else, you can use a traditional function. Then the
above syntax as the only function shorthand would be OK.
--
Dr. Axel Rauschmayer
[email protected] <mailto:[email protected]>
home: rauschma.de <http://rauschma.de>
twitter: twitter.com/rauschma <http://twitter.com/rauschma>
blog: 2ality.com <http://2ality.com>
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