Using typescript decorators. It also uses reflect-metadata because typescript verifies this package is loaded before emitting type information.

Class to observe objects in Typescript. Contribute to FlareMind/typescript-object-observer development by creating an account on GitHub.

TypeScript is a variation of the popular JavaScript programming language that adds features that are important for enterprise development. In particular, TypeScript is strongly typed—meaning ...

In conjunction with import type, TypeScript 3.8 also adds a compiler flag to control what happens with imports that won’t be used at runtime: importsNotUsedAsValues.