Allow Duck-typing checks for conditional API compat logic about eslint-plugin-compat

[amilajack]

Oh yea, that's right. I've updated the rfc the initial comment to reflect this. Thanks for letting me know about this!

[amilajack]

@deecewan Sorry for the late response. Somehow I missed the notification for this. That should be allowed. I just added this example to my initial comment

[ljharb]

Wouldn't ServiceWorker throw a ReferenceError when it's not defined, unless it's used with typeof?

[ljharb]

In other words, duck-typing should only be allowed when chained off of a definitely-present object.

[deecewan]

what would happen in this case:

if (String.prototype.includes) {
  if ('some'.includes('e')) {
    // do some action
  }
}

In this case, you've validated that the function exists before using it.

[TrevorBurnham]

@amilajack Say, we're very interested in this feature at my company. Have you made any headway? If you need help, me and some of my colleagues would be happy to roll up our sleeves!

[SalimBensiali]

Hi @amilajack, I am also interested in this feature, has any progress been made since? Would you like any contribution? Cheers

[amilajack]

@SalimBensiali I always love contributions. Unfortunately I don't have enough time to contribute to this project. Would really love if anyone could work on this!

[SalimBensiali]

No worries @amilajack , is there an initial branch, POC? Is this issue here the one source of truth? Happy to look at this. Cheers.

[amilajack]

Nope, nothing yet