TypeScript 4.5 arrives with Promise improvements

TypeScript 4.5, the latest upgrade to Microsoft’s strongly typed language based on JavaScript, is now generally available.

The release features a new utility type, the

type, for modeling operations such as

in

functions or the

method on

objects. However, another capability originally planned for TypeScript 4.5, support for ECMAScript modules in Node.js 12, has been deferred to a later version of TypeScript.

Node.js, which can work with TypeScript, has been working to support ECMAScript modules (ESM), which enable packaging of JavaScript code for reuse. This work has been difficult because Node.js was built on a different module system, CommonJS, Microsoft said. But ESM was largely implemented in Node.js 12.

To read this article in full, please click here