I *do* fully agree with the notion that enums should generate Symbols by
default... however, it seems unreasonable to prevent users from assigning
other types as well.
Should enums also offer programmers the ability to assign explicit values,
as per traditional enum constructs? For instance, in TypeScript, coders are
able to assign values manually, or even elevate the initial index that
enumerations are counted from:
const colours = {
Red = 1,
Green, // 2
Blue // 3
};
We can probably do away with the initial index elevation (since enum'd
names would default to the Symbol representation of the identifier,
anyway), but I imagine many developers would expect to be able to assign
integers in JS enums the same way they can in C, et al.
On 16 December 2015 at 23:00, <[email protected]> wrote:
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> 1. Re: Propose simpler string constant (Coroutines)
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>
> ---------- Forwarded message ----------
> From: Coroutines <[email protected]>
> To: es-discuss <[email protected]>
> Cc:
> Date: Wed, 16 Dec 2015 03:31:26 -0800
> Subject: Re: Propose simpler string constant
> On Wed, Dec 16, 2015 at 3:20 AM, Thomas <[email protected]>
> wrote:
> > IMHO it'd be a huge mistake to not use symbols for enums.
> >
> > In my head this:
> >
> > const colours = enum {
> > Red,
> > Yellow,
> > Green,
> > Blue
> > }
> >
> > should 'desugar' to something like this in ES6:
> >
> > const colours = {
> > Red: Symbol('Red'),
> > Yellow: Symbol('Yellow'),
> > Green: Symbol('Green'),
> > Blue: Symbol('Blue')
> > }
> >
> > Thomas
>
> This person gets it. +1 :-)
>
>
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