The most widely used ES standards with JavaScript are ES5 and ES6. What is TypeScript? TypeScript (TS) is a JavaScript superset that serves the same goal as JavaScript.

If you know anything about Typescript and JavaScript, you’ll know they’re not competing forces. They have a unique relationship, working hand in hand.

Microsoft's open-source programming language TypeScript – the alter ego of JavaScript but with a type system – turns 10 years old this December.

Microsoft's TypeScript 3.9 JavaScript spin-off brings major compile time improvements for popular JavaScript libraries.