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- # Essential Map
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- [![Build Status](https://travis-ci.com/ungap/essential-map.svg?branch=master)](https://travis-ci.com/ungap/essential-map) [![Coverage Status](https://coveralls.io/repos/github/ungap/essential-map/badge.svg?branch=master)](https://coveralls.io/github/ungap/essential-map?branch=master) [![Greenkeeper badge](https://badges.greenkeeper.io/ungap/essential-map.svg)](https://greenkeeper.io/) ![WebReflection status](https://offline.report/status/webreflection.svg)
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- An essential [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) poorlyfill for legacy browsers.
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- Only methods are `delete`, `forEach`, `get`, `has`, and `set`.
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- * CDN via https://unpkg.com/@ungap/essential-map
- * ESM via `import Map from '@ungap/essential-map'`
- * CJS via `const Map = require('@ungap/essential-map')`
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- Compatible down to IE9, works well with ES5 shim upfront in IE8 (and maybe lower too).
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- [Live test](https://ungap.github.io/essential-map/test/)
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