tsconfig.json

{
  "compilerOptions": {
    "resolveJsonModule": true,
    "outDir": "build/dist",
    "module": "esnext",
    "target": "es5",
    "types": ["react"],
    "lib": ["es7", "dom"],
    "sourceMap": true,
    "allowJs": true,
    "jsx": "preserve",
    "moduleResolution": "node",
    "forceConsistentCasingInFileNames": true,
    // "noImplicitReturns": true,
    // "noImplicitThis": true,
    // "noImplicitAny": false,
    // "importHelpers": true,
    // "strictNullChecks": true,
    // "suppressImplicitAnyIndexErrors": true,
    // "noUnusedLocals": true,
    // "experimentalDecorators": true,
    "downlevelIteration": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "baseUrl": "./src",
    "skipLibCheck": true,
    "isolatedModules": true,
    "noEmit": true,
    "strict": true
  },
  "exclude": ["node_modules", "build", "scripts", "config"],
  "include": ["src"]
}