tsconfig.json

{
    "compilerOptions": {
        /* Basic Options */
        "module": "commonjs",
        "moduleResolution": "node",
        "esModuleInterop": true,
        "newLine": "LF",
        "outDir": "./lib/",
        "target": "es2015",
        "sourceMap": true,
        "declaration": true,
        "jsx": "preserve",
        "lib": ["esnext", "dom"],
        /* Strict Type-Checking Options */
        "strict": true,
        /* Additional Checks */
        /* Report errors on unused locals. */
        "noUnusedLocals": true,
        /* Report errors on unused parameters. */
        "noUnusedParameters": true,
        /* Report error when not all code paths in function return a value. */
        "noImplicitReturns": true,
        /* Report errors for fallthrough cases in switch statement. */
        "noFallthroughCasesInSwitch": true
    },
    "include": ["src/**/*"],
    "exclude": [".git", "node_modules"]
}