tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,

    // Tells TypeScript to read JS files, as normally they are ignored as source files
    "allowJs": true,

    // Generate d.ts files
    "declaration": true,

    // Go to js file when using IDE functions like "Go to Definition" in VSCode
    "declarationMap": true,

    // Types should go into this directory.
    // Removing this would place the .d.ts files next to the .js files
    "outDir": "dist",

    "target": "ES2021",
    "noImplicitAny": true,
    "moduleResolution": "node",
    "sourceMap": true,
    "baseUrl": ".",
    "paths": {
      "*": [
        "node_modules/*",
        "src/types/*"
      ]
    }
  },
  "include": [
    "src/**/*"
  ],
  "exclude": ["node_modules", "**/*.spec.ts"]
}