> Le 10 mai 2016 à 09:44, G. Kay Lee <balancetraveller+es-disc...@gmail.com> a
> écrit :
>
>
> Can't remember any instance where I've written something like `x = x || {}`
> after the introduction of Default Parameters in ES6, so I don't see any
> chance for me writing something like `x ||= {}` even if this thing somehow
> makes its way in.
Some people do have use cases despite default arguments, see e.g.
https://esdiscuss.org/topic/is-much-needed#content-4
<https://esdiscuss.org/topic/is-much-needed#content-4>
>
> The thing is, it's far more common to encounter codes like `x = y || {}`, and
> then a new Default Operator would make sense due to the issue with falsy
> values. So I'd throw my support behind an authentic Default Operator proposal
> like `x = y ?? {}`
> (http://wiki.ecmascript.org/doku.php?id=strawman:default_operator
> <http://wiki.ecmascript.org/doku.php?id=strawman:default_operator>). But
> definitely not `||=`.
>
Agree. I wonder why people keep to reclaim a `||=` operator (with semantics
inspired from binary `||`), when their use cases generally show that `??=` is
more appropriate (with approximate semantics of: `if (a === undefined) a = b;`).
—Claude_______________________________________________
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