FrailMap is an extension of WeakMap that supports primitive values using WeakRef. It may also set individual pairs to be strongly referenced when specified, or when WeakRef is not available.

import { FrailMap } from "frail-map";

const myMap = new FrailMap<string, number>();
myMap.set("foo", "foo");
myMap.set("bar", "bar", { strong: true });

console.log(myMap.get("foo")); // -> "foo"
console.log(myMap.get("bar")); // -> "bar"

// ... After GC ...

console.log(myMap.get("foo")); // -> undefined
console.log(myMap.get("bar")); // -> "bar"

If you find a bug or would like to suggest a new feature, please open an issue or submit a pull request on GitHub.

FrailMap is licensed under the MIT License. See the LICENSE file for more information.

If you find this project useful, please consider supporting it by donating to the author.