mirror-rhinstaller-node-cache/is-weakset
2026-10-07 13:11:38 +00:00
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test 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
.editorconfig 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
.eslintrc 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
.nycrc 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
CHANGELOG.md 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
index.d.ts 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
index.js 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
LICENSE 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
package.json 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
README.md 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00
tsconfig.json 8986ea02568055672e1beddb78d7e5aed90251028babf76ed1d8d56afb5edf35 package.json 2026-10-07 13:11:38 +00:00

is-weakset Version Badge

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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