tsconfig.json

{
    "compilerOptions": {
        "target": "es5",
        "module": "commonjs",
        "moduleResolution": "node",
        "declaration": true,
        "sourceMap": true,
        "strict": true,
        "rootDir": "src",
        "outDir": "dist",
        "lib": [ "esnext", "dom" ]
    },
    "exclude": [ "node_modules", "dist", "sample" ]
}