https://github.com/derhuerst/key-map

Keep track of old keys when removing duplicates.
https://github.com/derhuerst/key-map

duplicates object rename

Last synced: 4 months ago
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Keep track of old keys when removing duplicates.

• Host: GitHub
• URL: https://github.com/derhuerst/key-map
• Owner: derhuerst
• License: isc
• Created: 2016-04-20T14:34:20.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2020-05-03T15:54:37.000Z (about 6 years ago)
• Last Synced: 2025-02-09T16:39:02.025Z (over 1 year ago)
• Topics: duplicates, object, rename
• Language: JavaScript
• Homepage: https://github.com/derhuerst/key-map
• Size: 7.81 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: readme.md
  • License: license.md

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README

          
# key-map 🔜

**When you remove duplicates in a collection** mapped by keys, you may want to **keep track of old keys** and their new equivalent.

[![npm version](https://img.shields.io/npm/v/key-map.svg)](https://www.npmjs.com/package/key-map)

[![build status](https://img.shields.io/travis/derhuerst/key-map.svg)](https://travis-ci.org/derhuerst/key-map)

[![dependency status](https://img.shields.io/david/derhuerst/key-map.svg)](https://david-dm.org/derhuerst/key-map)

[![dev dependency status](https://img.shields.io/david/dev/derhuerst/key-map.svg)](https://david-dm.org/derhuerst/key-map#info=devDependencies)

![ISC-licensed](https://img.shields.io/github/license/derhuerst/key-map.svg)

[![chat on gitter](https://badges.gitter.im/derhuerst.svg)](https://gitter.im/derhuerst)

## Installing

```

npm install key-map

```

## Usage

```js

const keyMap = require('key-map')

const m = keyMap(['a', 'b', 'c'])

m.get('a') // -> 'a'

m.get('b') // -> 'b'

m.get('c') // -> 'c'

m.map('c', 'b') // map c to b

m.map('b', 'a') // map b to a

m.get('a') // -> 'a'

m.get('b') // -> 'a'

m.get('c') // -> 'a'

```

## Contributing

If you **have a question**, **found a bug** or want to **propose a feature**, have a look at [the issues page](https://github.com/derhuerst/key-map/issues).