TypeScript 5.4 is a release candidate with new features such as preserved narrowing in closures, the NoInfer utility type, Object.groupBy and Map.groupBy methods, support for require() calls in moduleResolution bundler and module preserve, and more.
•12m read time• From devblogs.microsoft.com
Table of contents
Preserved Narrowing in Closures Following Last AssignmentsThe NoInfer Utility TypeObject.groupBy and Map.groupBySupport for require() calls in --moduleResolution bundler and --module preserveChecked Import Attributes and AssertionsQuick Fix for Adding Missing ParametersUpcoming Changes from TypeScript 5.0 DeprecationsNotable Behavioral ChangesWhat’s Next?Sort: