Converting LWC to TypeScript

Convert a Lightning Web Component bundle from JavaScript to TypeScript. The deliverable is a fully-typed .ts implementation plus a .d.ts file that only exposes @api members (the public surface other LWCs consume).

When to Use This Skill

• User wants to migrate a single component or a folder of components from .js to .ts.
• User needs a .d.ts for an existing LWC so other components (or an external TypeScript host) can import it safely.
• User is adding type annotations to an already-renamed .ts LWC that hasn't been properly typed yet.
• User wants JSDoc-style type hints upgraded to real TypeScript types.

Prerequisites