Concise Method Binding

JD Isaacks jd at
Wed Nov 11 16:01:51 UTC 2015

I think what you are suggesting already exists with `::obj.method` which
evaluates to `obj.method.bind(obj)`

However, this creates a new function each time so `::obj.method
!== ::obj.method`, not sure how `::obj.method === ::obj.method` would work.

I sort of agree with you that using it that way would be preferred. However
if the community wants bound methods attached to objects, there is
currently no way to do that with an object literal.

You would have to do something like:

let obj = {};
obj.method = function(){}.bind(obj);

With my proposal you can.

let obj = { ::method(){} };

On Wed, Nov 11, 2015 at 10:20 AM, Andrea Giammarchi <
andrea.giammarchi at> wrote:

> Just my thoughts, I wouldn't put any self-bound thing in the class and
> rather improve that `::` proposal so that whenever you `obj::method` it
> creates a uniquely bound callback so that `obj::method === obj::method` and
> at that point whenever you need to export, pass, or use such method you
> just `obj::method` or `obj::method()` or `let method = obj::method` and
> bring the pattern whenever it's needed instead of being slightly different
> per each "place" (class rather than objects)
> That would make it lazy, usable for events (in order to be able to also
> remove them) and easily transpilable for smoother migration.
> Having `class A { ::method() {} }` feels like somebody is playing too much
> with the protoype or "accidentally" polluting the constructor
> Regards
> On Wed, Nov 11, 2015 at 2:50 PM, JD Isaacks <jd at> wrote:
>> Andrea, Sort of. I am talking about adding an additional place where that
>> operator `::` can be used -- with concise methods.
>> Currently they cannot be used in the way I described above but I think
>> there are several reasons why it makes sense.
>> _______________________________________________
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