TypeScript goes 3.9

TypeScript has been updated with improvements to the latest release centered on performance, polish, and stability, according to the development team. The compiler and editing experience have been worked on to improve speed.  TypeScript is a superset of JavaScript that adds optional static types which can be checked by the TypeScript compiler to catch common errors in your programs. The developers say they worked on TypeScript’s performance after observing extremely poor editing/compilation speed with packages...