Multikey Map

A simple map implementation that supports multiple keys.

multikey-map uses mixed-map internally, which is a map implementation that uses both Map and WeakMap internally.

Installation

npm install multikey-map

Usage

import MultikeyMap from 'multikey-map';

let map = new MultikeyMap<[string, number], string | undefined>();

map.set(['foo', 0], 'a');
map.set(['foo', 1], 'b');

map.get(['foo', 0]); // 'a'
map.get(['foo', 1]); // 'b'
map.get(['foo', 2]); // undefined
map.has(['foo', 2]); // false
map.hasAndGet(['foo', 2]); // [false, undefined]

map.set(['bar', 0], undefined);

map.get(['bar', 0]); // undefined
map.has(['bar', 0]); // true
map.hasAndGet(['bar', 0]); // [true, undefined]

License

MIT License.