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Implementation status tracking #115

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rkirsling opened this issue Aug 1, 2019 · 10 comments
Open

Implementation status tracking #115

rkirsling opened this issue Aug 1, 2019 · 10 comments

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@MatthiasKunnen

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@MatthiasKunnen MatthiasKunnen commented Aug 1, 2019

TypeScript: microsoft/TypeScript#16

@devsnek

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@devsnek devsnek commented Aug 1, 2019

wow that is an old feature request for typescript 😅

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@devsnek devsnek commented Aug 8, 2019

Initial implementation of optional chaining has landed in V8 behind --harmony-optional-chaining (v8/v8@ceb7bd5)

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@devsnek devsnek commented Aug 12, 2019

Initial implementation of optional chaining has landed in engine262 behind --features=OptionalChaining (engine262/engine262@e4c6798)

@rkirsling

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@rkirsling rkirsling commented Aug 18, 2019

Landed in JSC (behind feature flag) in WebKit/webkit@2af340f (https://trac.webkit.org/r248829).

@MatthiasKunnen

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@rkirsling rkirsling commented Nov 18, 2019

This is now on by default in JSC (will likely be available in STP 97).

@robpalme

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@robpalme robpalme commented Nov 24, 2019

V8 unflagged on master on 2019-11-01 which makes it available in Chrome 80. You can try it using Chrome Canary.

@avp

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@avp avp commented Dec 3, 2019

Landed in Hermes: facebook/hermes@f6577a4

@rhuanjl

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@rhuanjl rhuanjl commented Dec 5, 2019

I've opened an issue on chakracore microsoft/ChakraCore#6349 I may try and do the implementation in the next 2-3 weeks if no one else does.

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