groupby-polyfill

A small polyfill with zero-dependency that do just do one thing.

npm install groupby-polyfill

This is a hybrid package. It dose not import or export anything so both require and import works.

This will conditionally polyfill global Object/Map with the missing groupBy method using ??= but I would recommend that you conditionally import it if it's needed. See comp. table at MDN if you need this:

• Object.groupBy
• Map.groupBy

Documentation and code example is in this links too.

Usage

Just need to import it.

import 'groupby-polyfill/lib/polyfill.js'