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Mark properties defined in Annex B as deprecated #43709

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@petamoriken

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@petamoriken

lib Update Request

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My compilation target is ESNext and my lib is ES2020.

Missing / Incorrect Definition

No

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No

Documentation Link

ES2022 (Draft) B.2 Additional ECMAScript Features for Web Browsers
https://tc39.es/ecma262/#sec-additional-ecmascript-features-for-web-browsers

These features are not considered part of the core ECMAScript language. Programmers should not use or assume the existence of these features and behaviours when writing new ECMAScript code. ECMAScript implementations are discouraged from implementing these features unless the implementation is part of a web browser or is required to run the same legacy ECMAScript code that web browsers encounter.

ES2022 (Draft) B.2 Additional Built-in Properties
https://tc39.es/ecma262/#sec-additional-built-in-properties

Related: #32191, #19299

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Domain: lib.d.tsThe issue relates to the different libraries shipped with TypeScriptExperimentation NeededSomeone needs to try this out to see what happensFix AvailableA PR has been opened for this issueIn DiscussionNot yet reached consensusSuggestionAn idea for TypeScript

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