History

zzyuan 03ac614884 前端提交3		2025-02-25 13:45:28 +08:00
..
.github	前端提交3	2025-02-25 13:45:28 +08:00
test	前端提交3	2025-02-25 13:45:28 +08:00
.editorconfig	前端提交3	2025-02-25 13:45:28 +08:00
.eslintrc	前端提交3	2025-02-25 13:45:28 +08:00
.gitattributes	前端提交3	2025-02-25 13:45:28 +08:00
.nycrc	前端提交3	2025-02-25 13:45:28 +08:00
CHANGELOG.md	前端提交3	2025-02-25 13:45:28 +08:00
LICENSE	前端提交3	2025-02-25 13:45:28 +08:00
README.md	前端提交3	2025-02-25 13:45:28 +08:00
index.d.ts	前端提交3	2025-02-25 13:45:28 +08:00
index.js	前端提交3	2025-02-25 13:45:28 +08:00
package.json	前端提交3	2025-02-25 13:45:28 +08:00
tsconfig.json	前端提交3	2025-02-25 13:45:28 +08:00

README.md

is-weakset

Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Example

var isWeakSet = require('is-weakset');
assert(!isWeakSet(function () {}));
assert(!isWeakSet(null));
assert(!isWeakSet(function* () { yield 42; return Infinity; });
assert(!isWeakSet(Symbol('foo')));
assert(!isWeakSet(1n));
assert(!isWeakSet(Object(1n)));

assert(!isWeakSet(new Set()));
assert(!isWeakSet(new WeakMap()));
assert(!isWeakSet(new Map()));

assert(isWeakSet(new WeakSet()));

class MyWeakSet extends WeakSet {}
assert(isWeakSet(new MyWeakSet()));

Tests

Simply clone the repo, npm install, and run npm test