tsconfig.json

{
  "include": ["src/**/*"],
  "exclude": ["node_modules"],
  "compilerOptions": {
    "target": "es5",
    "module": "es2015",
    "lib": ["dom", "es2015"],
    "allowJs": false,
    "declaration": true,
    "declarationMap": false,
    "outDir": "./dist",
    "importHelpers": true,

    /* Type Checks */
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "alwaysStrict": true,

    /* Additional Checks */
    "noUnusedLocals": true,
    "noUnusedParameters": false,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,

    /* Module Resolution Options */
    "moduleResolution": "node",
    "baseUrl": "./",
    "paths": {
      "src/*": ["./src/*"]
    },
    "esModuleInterop": true
  }
}