An essential Map poorlyfill for legacy browsers.
Only methods are delete, forEach, get, has, and set.
- CDN via https://unpkg.com/@ungap/essential-map
- ESM via
import Map from '@ungap/essential-map' - CJS via
const Map = require('@ungap/essential-map')
Compatible down to IE9, works well with ES5 shim upfront in IE8 (and maybe lower too).