Declaration Files

tship generates declaration files (*.d.ts) for each format only when declaration is enabled in your tsconfig.json.

Structure

When directories are separate:

• dist/cjs/index.d.ts
• dist/esm/index.d.ts

When sharing a folder:

• dist/index.d.cts
• dist/index.d.mts

Respecting tsconfig.json Options

tship fully respects your tsconfig.json settings:

• If declaration is false or not set → no .d.ts files are emitted.
• If declarationMap is false or not set → no .d.ts.map files are emitted.
• If sourceMap is false or not set → no .js.map files are emitted.

This ensures tship only produces what you explicitly asked for.

Source Maps

When enabled, source maps and declaration maps are generated and correctly reference the output files. If files are renamed (when formats share a directory), the source map references are updated automatically.