tsconfig.json

{
  "compilerOptions": {
    "noEmit": true,
    "target": "ES2015",
    "lib": ["esnext"],
    "removeComments": true,
    "useUnknownInCatchVariables": true,
    "allowJs": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "exactOptionalPropertyTypes": true,
    "forceConsistentCasingInFileNames": true,
    "esModuleInterop": true,
    "module": "CommonJS",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noErrorTruncation": true,
    "noUncheckedIndexedAccess": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitOverride": true,
    "noPropertyAccessFromIndexSignature": true,
    "baseUrl": ".",
    "outDir": "./dist",
    "types": ["node", "mocha"]
  },
  "include": ["**/*.js", "**/*.ts"],
  "exclude": ["node_modules", "dist"]
}