Difference between TypeScript and ES6
History of TypeScript
Anders Hejlsberg developed TypeScript. It was first introduced for the public in the month of 1 October 2012. After two years of internal development at Microsoft, the new version of TypeScript 0.9 was released in 2013. The current version of TypeScript is TypeScript 3.4.5 which was released on 24 April 2019.
TypeScript vs. ES6