tsconfig.json

{
  "compilerOptions": {
    "declaration": true,
    "declarationDir": "build",
    "module": "esnext",
    "target": "es5",
    "lib": ["es6", "dom", "es2016", "es2017"],
    "sourceMap": true,
    "jsx": "react",
    "moduleResolution": "node",
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "build"],
  "declaration": true,
  "declarationMap": true,
  "noEmit": true,
  "jsx": "preserve",
  "strict": true,
  "pretty": true,
  "sourceMap": true,
  /* Additional Checks */
  "noUnusedLocals": true,
  "noUnusedParameters": true,
  "noImplicitReturns": true,
  "noFallthroughCasesInSwitch": true,
  /* Module Resolution Options */
  "moduleResolution": "node",
  "esModuleInterop": true,
  "allowSyntheticDefaultImports": true,
  "resolveJsonModule": true,
  "allowJs": true,
  "skipLibCheck": true,
  "forceConsistentCasingInFileNames": true,
  "isolatedModules": true
}