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TypeScript

TypeScript

TypeScript is an open-source programming language developed and maintained by Microsoft. It is a strict syntactical superset of JavaScript and adds optional static typing to the language. TypeScript is designed for development of large applications and trans-compiles to JavaScript.

I love to use TypeScript for open source packages. It makes programming JavaScript easier and shows intent.

JavaScript, Node.js, TypeScript

Support both Node.js and browser JS in one TypeScript file

TypeScript allows for better JavaScript development. JavaScript is getting useful in more domains. But different systems require different ways of handling modules and exposing features. TypeScript solves this by compiling differently when a target is specified.

But what if you need a TypeScript script that supports both vanilla browser JS and Node.js? What if you need to expose 10+ classes?