tsconfig.base.json

{
  // ESM tsconfig based off https://github.com/sindresorhus/tsconfig/blob/main/tsconfig.json
  "compilerOptions": {
    "composite": true,
    // ESM Modules for node16+
    "target": "ES2021",
    "module": "Node16",
    "moduleResolution": "Node16",
    "moduleDetection": "force",
    // To provide backwards compatibility, Node.js allows you to import most CommonJS packages with a default import. This flag tells TypeScript that it's okay to use import on CommonJS modules.
    "allowSyntheticDefaultImports": true,
    // ESM doesn't yet support JSON modules.
    "resolveJsonModule": false,
    // Include no libs by default
    "lib": ["DOM", "DOM.Iterable", "ES2021"],
    "pretty": true,
    "newLine": "lf",
    "jsx": "react",
    "declaration": true,
    "stripInternal": true,
    "strict": true,
    "noImplicitReturns": true,
    "noImplicitOverride": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedIndexedAccess": true,
    "noPropertyAccessFromIndexSignature": true,
    "noEmitOnError": true,
    "useDefineForClassFields": true,
    "forceConsistentCasingInFileNames": true,
    "skipLibCheck": true,
    // Additional options outside sindresorhus's base config
    "sourceMap": true
  }
}