tsconfig.json

{
    "compilerOptions": {
        "target": "es5",
        "module": "commonjs",
        "lib": ["dom", "es2015", "es2016", "es2017", "esnext"],
        "jsx": "react",
        "declaration": true,
        "sourceMap": true,
        "outDir": "./dist",
        "rootDir": "./src",
        "importHelpers": false,
        "downlevelIteration": true,
        "strict": true,
        "skipLibCheck": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "noImplicitReturns": true,
        "noImplicitAny": false,
        "noFallthroughCasesInSwitch": true,
        "moduleResolution": "node",
        "esModuleInterop": true,
        "allowSyntheticDefaultImports": false,
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true
    },
    "include": ["src/"],
    "exclude": ["node_modules", "dist", "src/**/*.test.*"]
}