Definition
TypeScript is a programming language developed by Microsoft that extends JavaScript with static typing. Whereas JavaScript is dynamically typed and allows you to mix numbers, strings, and objects without restriction, TypeScript requires you to declare types explicitly - which surfaces errors at compile time rather than in production. TypeScript compiles to standard JavaScript and runs in any environment where JavaScript runs. TypeScript has become the standard for professional web development: frameworks such as VueProgressive JavaScript framework for building interactive user interfaces. 3, ReactJavaScript library from Meta for building component-based user interfaces., Next.js, and Angular have first-class TypeScript support. On the backend, TypeScript is used with Node.js and Deno. IDE tooling such as VS Code provides automatic code suggestions, refactoring, and documentation based on type information. For teams building complex integration platforms - such as ElhubNational hub for metering data and market processes in the Norwegian electricity market. connections with many message types and state machines - TypeScript reduces the risk of logical errors and makes the codebase easier to maintain over time.