Playground

Reader: TypeScript library authors and maintainers who want to try ttsc in a browser before wiring it into a project.

The hosted playground at /playground runs the same wasm-backed compiler worker as the website. Paste TypeScript source directly into the editor. When the source imports a package that is not bundled with the playground, the browser resolves the package from npm, downloads the package tarball, unpacks the files, and mounts them into the in-memory node_modules tree before compiling.

While package files are being resolved, downloaded, unpacked, and installed, the playground shows a progress modal. Declaration files from the package are also registered with Monaco so editor diagnostics and completions can see the same type surface that the compiler sees.

Package Support

The dependency loader starts from bare imports, dynamic imports, and require("package") calls in the source. It installs the imported package, its registry dependencies, non-optional peer dependencies, and a matching @types/* package when the package itself does not ship declarations.

The typia packages used by the default examples remain bundled because the wasm-side typia adapter must match the exact typia source version linked into the playground compiler.

Current Scope

The browser-side dependency loader currently lives inside the website playground. A reusable UI package can be split out later once the interaction surface settles.