https://github.com/dy/primitive-pool

Get unique object for a primitive value to store primitives in WeakMap etc.
https://github.com/dy/primitive-pool

Last synced: about 1 year ago
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Get unique object for a primitive value to store primitives in WeakMap etc.

• Host: GitHub
• URL: https://github.com/dy/primitive-pool
• Owner: dy
• Created: 2018-06-23T20:11:30.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2023-02-17T17:53:59.000Z (over 3 years ago)
• Last Synced: 2025-05-11T13:16:12.268Z (about 1 year ago)
• Language: JavaScript
• Size: 7.81 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

          
# primitive-pool [![unstable](https://img.shields.io/badge/stability-unstable-green.svg)](http://github.com/badges/stability-badges) [![Build Status](https://img.shields.io/travis/dy/primitive-pool.svg)](https://travis-ci.org/dy/primitive-pool)

Get object for a primitive value. Useful to make WeakMap store strings/numbers and other primitives.

## Usage

[![npm install primitive-pool](https://nodei.co/npm/primitive-pool.png?mini=true)](https://npmjs.org/package/primitive-pool/)

```js

import p from 'primitive-pool'

let map = new WeakMap()

map.set(p('abc'), 123)

map.get(p('abc')) // 123

map.set(p(null), 789)

map.get(p(null)) // 789

map.set(p(123), 'abc')

map.get(p(123)) // 'abc'

// non-primitives are stored as is

let a = {}

map.set(p(a), 'xyz')

map.get(a) // 'xyz'

```

## Alternatives

* [weak-value](https://github.com/WebReflection/weak-value)

* [not-so-weak](https://github.com/WebReflection/not-so-weak)

* [weakish-map](https://github.com/lamansky/weakish-map)