A spec-compliant polyfill for Intl.ListFormat fully tested by the official ECMAScript Conformance test suite
If you're supporting IE11-, this requires
To use the polyfill, just import it to make sure that a fully functional Intl.ListFormat is available in your environment:
If Intl.ListFormat already exists, the polyfill will not be loaded.
To load locale data, you can include them on demand:
If you want to polyfill all locales (e.g for Node):
This library is fully test262-compliant.