Function constants for Identity and No-op

[Mark S. Miller]

On Wed, Aug 10, 2016 at 4:53 AM, Andy Earnshaw <andyearnshaw at gmail.com>
wrote:

> On Wed, 10 Aug 2016 at 12:42 Michał Wadas <michalwadas at gmail.com> wrote:
>
>> Function.prototype is no-op (run Function.prototype.toString() for more
>> information)
>>
>
> That's true, but using `Function.prototype` can be confusing
>

Indeed.

> Function.prototype instanceof Function
false



> when passed to a function as a callback:
>
>     someFunc(Function.prototype);
>
> It's not immediately clear that `someFunc` is expecting a callback
> function in this case, whereas `Function.NOOP` or `() => {}` are pretty
> obvious.
>
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-- 
    Cheers,
    --MarkM
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