tsconfig.json

{
  "include": [
    "src/",
    "tsdown.config.ts"
  ],
  "compilerOptions": {
    /* https://www.npmjs.com/package/@tsconfig/node20 */
    "target": "ES2022",
    "module": "preserve",
    "moduleResolution": "bundler",
    "lib": [
      "ES2023"
    ],
    "strict": true /* Enable all strict type-checking options. */,
    "noUnusedLocals": true /* Report errors on unused locals. */,
    "noUnusedParameters": true /* Report errors on unused parameters. */,
    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
    "forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */,
    "allowUnusedLabels": false,
    "allowUnreachableCode": false,
    "exactOptionalPropertyTypes": true,
    "noImplicitOverride": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "removeComments": true,
    "skipLibCheck": true,
    "declaration": true,
    "isolatedDeclarations": true
  },
}