forked from lix-project/lix-website
.. | ||
.github | ||
test | ||
.eslintignore | ||
.eslintrc | ||
.nycrc | ||
CHANGELOG.md | ||
index.js | ||
LICENSE | ||
package.json | ||
README.md |
is-weakref ![Version Badge](https://versionbadg.es/inspect-js/is-weakref.svg)
[![npm badge][11]][1]
Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Example
var isWeakRef = require('is-weakref');
assert(!isWeakRef(function () {}));
assert(!isWeakRef(null));
assert(!isWeakRef(function* () { yield 42; return Infinity; });
assert(!isWeakRef(Symbol('foo')));
assert(!isWeakRef(1n));
assert(!isWeakRef(Object(1n)));
assert(!isWeakRef(new Set()));
assert(!isWeakRef(new WeakSet()));
assert(!isWeakRef(new Map()));
assert(!isWeakRef(new WeakMap()));
assert(isWeakRef(new WeakRef({})));
class MyWeakRef extends WeakRef {}
assert(isWeakRef(new MyWeakRef({})));
Tests
Simply clone the repo, npm install
, and run npm test