Hi Tab, then you get the Labeler, which this message is responding to. On Tue, Sep 8, 2015 at 2:12 PM, Tab Atkins Jr. <[email protected]> wrote:
> On Tue, Sep 8, 2015 at 2:07 PM, Mark S. Miller <[email protected]> wrote: > > On Tue, Sep 8, 2015 at 1:57 PM, Michael McGlothlin > > <[email protected]> wrote: > >> > >> I try to keep it pretty simple. It's not fancy but the times you want > fast > >> and dirty information like this are the same times you don't want to > have to > >> define it manually. > >> > >> Symbol.identity = Symbol( 'Symbol.identity' ); > >> const identity = Symbol( 'identity' ); > >> var OBJECT_ID = 0; > >> Object.defineProperty( Object.prototype, Symbol.identity, { > >> get: () => { > >> if ( !Object.hasOwnProperty.call( this, identity ) ) { > >> this[ identity ] = ++OBJECT_ID; > > > > > > Does not work on frozen objects. > > Of course, it's trivial to switch it to WeakMap'ing the key. > > ~TJ > -- Cheers, --MarkM
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