With TypeScript 5.8, when a function’s return type is a generic conditional type, TypeScript now will use control flow analysis for generic parameters whose types are used in the conditional ...

Deferred module evaluation imports a module without immediately executing the module and its dependencies, avoiding ...

Microsoft has released TypeScript 5.9, featuring 'import defer' for better performance, an improved developer experience, and ...

At compile time, TypeScript would remove all the types and return it to JavaScript. "In a sense it's a type system that only exists during the developer experience, but it goes away at run time.

The new TypeScript version reduces the tsconfig.json files to the essentials and supports deferring module evaluation and ...

TypeScript 4.1 allows for recursive conditional types, too. Now conditional types can reference themselves within their branches, making it easier to write recursive type aliases.

Using generics in TypeScript is very similar to using them in, for example, C#. This method calls a generic function, specifying the data type to be used (string, in this case): res = ...

The responsibilities are clearly separated: TypeScript = JavaScript + Types! This is a wonderful model. It means that the compiler output is human-readable JavaScript, just like the programmer wrote.

The 2.0 version of the TypeScript compiler can do a much better job of figuring out what your code will do at runtime. This means that, over and above stricter type checking, you can expect better ...