tsconfig.json

{
    "compilerOptions": {
        "skipLibCheck": true,
        "allowJs": true,
        // Target latest version of ECMAScript.
        "target": "esnext",
        "declaration": true,
        "module": "esnext",
        // Search under node_modules for non-relative imports.
        "moduleResolution": "node",
        // Process & infer types from .js files.
        // "allowJs": true,
        // "checkJs": true,
        // Enable strictest settings like strictNullChecks & noImplicitAny.
        "strict": true,
        // Disallow features that require cross-file information for emit.
        // "isolatedModules": true,
        // Import non-ES modules as default imports.
        "esModuleInterop": true,
        "jsx": "react"
    },
    "files": ["src/index.ts"],
    "include": ["src/**/*"],
    "exclude": [],
    // this ts-node config is needed for cucumberjs to work with TypeScript
    "ts-node": {
        "esm": true,
        // It is faster to skip typechecking.
        // Remove if you want ts-node to do typechecking.
        "transpileOnly": true,
        "compilerOptions": {
            "module": "commonjs"
        }
    }
}