If I've got this right, the idea of soft bind is that the function
distinguishes whether it's called as a function or as a method; if called as a
function, it uses the lexical binding of |this|, and if called as a method, it
uses the dynamically pass-in binding of |this|.
Note that the .call and .apply methods don't allow you to make this distinction.
Dave
On Mar 30, 2011, at 1:14 PM, P T Withington wrote:
> On 2011-03-29, at 17:38, Brendan Eich wrote:
>
> [...]
>> We did not discuss allowing |this| to be bound otherwise, *except*
>>
>> #foo(this = this| arg1, arg2) {...}
>
> Am I right in understanding the above to be an idiom for trampolining the
> outer `this` binding into the closure? (With the hazard that someone could
> override that binding.) Or are you just giving an example, not endorsing a
> particular idiom?
>
> [...]
>
>> The other use-case, what Alex Russell calls soft-bind, also wants |this| not
>> |^this|.
>
> Is there an example of what 'soft-bind' means somewhere?
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