Sohu Tech Products
Feb 28, 2024 · Fundamentals
Explore TypeScript 5.4: Closure Type Narrowing, NoInfer, and groupBy
This article examines the new TypeScript 5.4 beta features, including improved type narrowing in closures, the NoInfer utility type for better generic inference, the addition of Object.groupBy and Map.groupBy methods, and several important breaking changes to the type system.
Break ChangesMap.groupByNoInfer
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