- Imposing no runtime overhead on emitted programs.
- Aligning with current and future ECMAScript proposals.
- Avoiding the additin of expression-level syntax.
TypeScript’s creators focused chiefly on the type system and avoided adding new runtime syntax and behaviors. Today, TypeScript is used by millions of developers, and its popularity is increasing. The language has scored prominently in surveys and language rankings, such as the Pypl Popularity of Programming Language index, CircleCI’s 2022 State of Software Delivery report, and GitHub’s Octoverse report.
TypeScript is leveraged in prominent applications such as the Angular web development framework and the Deno runtime. The current version is TypeScript 4.8. TypeScript 4.9 is in a beta release stage.
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