tsconfig.json

{
  "compilerOptions": {
    // strict mode
    "strict": true,
    "alwaysStrict": true,
    "noImplicitAny": true,
    "noImplicitThis": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "useUnknownInCatchVariables": true,

    // no unused code
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "noUnusedLocals": true,
    "noUnusedParameters": true,

    // no implicit code
    "noImplicitOverride": true,
    "noImplicitReturns": true,

    // others
    "noUncheckedIndexedAccess": true,
    "noPropertyAccessFromIndexSignature": true,
    "noFallthroughCasesInSwitch": true,
    "exactOptionalPropertyTypes": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*.ts", "src/**/*.tsx", "src/**/*.vue", "tests/**/*.ts", "tests/**/*.tsx"],
  "exclude": ["node_modules", "dist/**/*"]
}