The Playground lets you write TypeScript or JavaScript online in a safe and sharable way.| www.typescriptlang.org
From allowJs to useDefineForClassFields the TSConfig reference includes information about all of the active compiler flags setting up a TypeScript project.| www.typescriptlang.org
How classes work in TypeScript| www.typescriptlang.org
TypeScript 3.7 Release Notes| www.typescriptlang.org