Suggestion: multiple keys, same value for object literals

[akx]

I have some code with something like this:

{ # coco
  foo: a
  bar: a
  baz: b
  quux: b
  eggs: c
}

But I think it'd be more elegant to be able to declare the multiple keys in a single k/v pair. Syntax suggestion (currently parse errors):

{ # coco
  (foo, bar): a
  (baz, quux): b
  eggs: c
}

Apropos: while thinking about other syntaxes for this, I noticed this -- is it intentional that

{ # coco
  [foo, bar]: a
  [baz, quux]: b
  eggs: c
}

parses into

{ // js
  a: [foo, bar],
  b: [baz, quux],
  eggs: c
}

[satyr]

Seems too narrow to dedicate a new syntax. Why not:

new
  @foo  = @bar  = a
  @baz  = @quux = b
  @eggs = c

or

with {eggs: c}
  &foo = &bar  = a
  &baz = &quux = b

is it intentional

Yes. {[b]:a} desugars to {a: [b]:a}, which is useful when destructuring:

$ coco -bce '{[b]:a} = c'
var a, b;
a = c.a, b = a[0];

[akx]

Ah, right, forgot the destructuring usecase. Anyway, those suggestions look good. Thanks :)