Capitalization: symbol vs. Symbol

# Axel Rauschmayer (11 years ago)

Given that all upcoming value object constructors will start with lowercase letters, shouldn’t Symbol, too?

Given that all upcoming value object constructors will start with lowercase letters, shouldn’t Symbol, too?

Axel

-- 
Dr. Axel Rauschmayer
axel at rauschma.de

home: rauschma.de
twitter: twitter.com/rauschma
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# Brendan Eich (11 years ago)

Symbols are not value objects, they are primitives like strings, and the 'Symbol' function is analogous to 'String'. See esdiscuss.org/notes/2013-09-18

Consensus/Resolution

Symbols are a new primitive type with regular wrapper objects

typeof symbol === "symbol"

implicit conversion to string throws

new Symbol throws

Symbols are public, not private - ok that they leak to Proxy

Symbols are unique

Only exposed via Object.getOwnPropertySymbols instead of Object.getOwnPropertyKeys

|Object.mixin| copies both symbol and string properties

Symbols are not value objects, they are primitives like strings, and the 
'Symbol' function is analogous to 'String'. See

http://esdiscuss.org/notes/2013-09-18


        Consensus/Resolution

  * Symbols are a new primitive type with regular wrapper objects
  * typeof symbol === "symbol"
  * implicit conversion to string throws
  * new Symbol throws
  * Symbols are public, not private - ok that they leak to Proxy
  * Symbols are unique
  * Only exposed via Object.getOwnPropertySymbols instead of
    Object.getOwnPropertyKeys
  * |Object.mixin| copies both symbol and string properties


/be



> Axel Rauschmayer <mailto:axel at rauschma.de>
> January 17, 2014 8:26 AM
> Given that all upcoming value object constructors will start with 
> lowercase letters, shouldn’t Symbol, too?
>
> Axel
>
> -- 
> Dr. Axel Rauschmayer
> axel at rauschma.de <mailto:axel at rauschma.de>
>
> home: rauschma.de <http://rauschma.de/>
> twitter: twitter.com/rauschma <http://twitter.com/rauschma>
> blog: 2ality.com <http://2ality.com/>
>
>
>
> _______________________________________________
> es-discuss mailing list
> es-discuss at mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss

# Axel Rauschmayer (11 years ago)

Ah, right. Given that Boolean() produces booleans (etc.), it does indeed fit in nicely.

Ah, right. Given that `Boolean()` produces booleans (etc.), it does indeed fit in nicely.

On Jan 17, 2014, at 18:09 , Brendan Eich <brendan at mozilla.com> wrote:

> Symbols are not value objects, they are primitives like strings, and the 'Symbol' function is analogous to 'String'. See
> 
> http://esdiscuss.org/notes/2013-09-18
> 
> 
>       Consensus/Resolution
> 
> * Symbols are a new primitive type with regular wrapper objects
> * typeof symbol === "symbol"
> * implicit conversion to string throws
> * new Symbol throws
> * Symbols are public, not private - ok that they leak to Proxy
> * Symbols are unique
> * Only exposed via Object.getOwnPropertySymbols instead of
>   Object.getOwnPropertyKeys
> * |Object.mixin| copies both symbol and string properties


-- 
Dr. Axel Rauschmayer
axel at rauschma.de

home: rauschma.de
twitter: twitter.com/rauschma
blog: 2ality.com



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