tsconfig.json

{
    "compilerOptions": {
        // Target latest version of ECMAScript.
        "target": "esnext",
        // Allow features like dynamic import().
        "module": "esnext",
        // Search under node_modules for non-relative imports.
        "moduleResolution": "node",
        // Process & infer types from .js files.
        "allowJs": false,
        // Don't emit; allow Babel to transform files.
        "noEmit": true,
        // Enable strictest settings like strictNullChecks & noImplicitAny.
        "strict": true,
        // Disallow features that require cross-file information for emit.
        "isolatedModules": true,
        // Allow importing non-TS files as "any".
        "noImplicitAny": false,
        // Import non-ES modules as default imports.
        "esModuleInterop": true,
        // Allow fancy language features.
        "lib": [
            "esnext"
        ]
    },
    "include": [
        "src"
    ]
}