In this video CJ shows 5 of his favorite new features coming to TypeScript 5.5

00:00 Intro
00:09 Inferred Type Predicates
01:10 Improved Indexed Access
02:30 Type Imports in JSDoc
03:12 New Set Methods
03:49 configDir Template Variable
04:39 When can I use this?

5.5 RC Announcement | https://devblogs.microsoft.com/typesc...
TypeScript Type Predicates | https://www.typescriptlang.org/docs/h...
Control flow analysis for element access with variable index| https://github.com/microsoft/TypeScri...

TC39 Proposal Set Methods | https://github.com/tc39/proposalset...
Set Methods on MDS | https://developer.mozilla.org/enUS/d...

TypeScript 5.5 Iteration Plan | https://github.com/microsoft/TypeScri...



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