tsconfig.base.json

{
  "compilerOptions": {
    "disableSourceOfProjectReferenceRedirect": true,
    "outDir": "${configDir}/dist",

    // Enable latest features
    "lib": ["ESNext", "DOM", "DOM.Iterable"],
    "target": "ESNext",
    "module": "ESNext",
    "moduleDetection": "force",
    "allowJs": false,

    // Bundler mode
    "moduleResolution": "bundler",
    // "allowImportingTsExtensions": true,
    "verbatimModuleSyntax": true,
    "sourceMap": false,
    "composite": true,
    "incremental": true,
    "esModuleInterop": false,
    "resolvePackageJsonImports": true,
    "resolvePackageJsonExports": true,

    // Best practices
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "forceConsistentCasingInFileNames": true,
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "alwaysStrict": true,
    "strict": true,

    // Some stricter flags (disabled by default)
    "isolatedDeclarations": true,
    "noImplicitAny": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strictPropertyInitialization": false,
    "noImplicitOverride": false,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUncheckedIndexedAccess": false,
    "noPropertyAccessFromIndexSignature": true,
    "strictNullChecks": false,
    "strictFunctionTypes": true,
    // "strictPropertyInitialization": true,
    "skipLibCheck": true
  },
  "files": []
}