tsconfig.json

{
    "compilerOptions": {
        "target": "ES2020",
        "module": "commonjs",
        "declaration": true,
        "outDir": "lib/esm",
        "rootDir": "src",
        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "checkJs": true,
        "allowJs": true,
        "moduleResolution": "node",
        "types": [
            "@types/jest",
            "node"
        ],
        "lib": [
            "es6",
            "dom",
            "es2021",
            "ES2021.String"
        ],
        "typeRoots": [
            "node_modules/@types",
            "src/types"
        ],
        "esModuleInterop": true,
        "skipLibCheck": true,
        "forceConsistentCasingInFileNames": true,
        "allowUnreachableCode": true,
        "useUnknownInCatchVariables": false,
    },
    "include": [
        "./src"
    ],
    "exclude": [
        "node_modules",
        "<node_internals>/**"
    ]
}