@cspell/strong-weak-map

A Map with weakly referenced values.

JavaScript WeakMap provides weak keys and strong values.

StrongWeakMap allows for strong keys and weak values while providing the same API as Map.

Install

``sh
npm install -S @cspell/strong-weak-map
`

Usage

TypeScript Example: Simple text file reader.

`ts
import { StrongWeakMap } from '@cspell/strong-weak-map';
import { promises as fs } from 'fs';

const cache = new StrongWeakMap>();

export function readTextFile(filename: string, encoding: BufferEncoding = 'utf8'): Promise {
const cached = cache.get(filename);
if (cached) return cached;

const content = fs.readFile(filename, encoding);

cache.set(filename, content);

return content;
}
``

The above example will reuse the promise as long as it has not been cleaned up by the Garbage Collector.

API

See: Map

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