TypeScript 5.1, available in a beta release as of April 18, features a variety of coding enhancements including easier implicit returns for undefined-returning functions and allowing unrelated types for getters and setters. Snippet completions for @param JSDoc tags also are featured.
With easier implicit returns for undefined-returning functions, TypeScript 5.1 now allows undefined-returning functions to have no return statement, fixing a situation in which only functions that could have absolutely no return statements were void-returning and any-returning functions. This meant that even if a developer explicity indicated that a function returned undefined, at least one return statement was required.
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