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| .github | 10 ay önce | |
| test | 10 ay önce | |
| .eslintrc | 10 ay önce | |
| .nycrc | 10 ay önce | |
| CHANGELOG.md | 10 ay önce | |
| LICENSE | 10 ay önce | |
| README.md | 10 ay önce | |
| index.d.ts | 10 ay önce | |
| index.js | 10 ay önce | |
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README.md
is-finalizationregistry 
Is this value a JS FinalizationRegistry? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Example
var isFinalizationRegistry = require('is-finalizationregistry');
assert(!isFinalizationRegistry(function () {}));
assert(!isFinalizationRegistry(null));
assert(!isFinalizationRegistry(function* () { yield 42; return Infinity; });
assert(!isFinalizationRegistry(Symbol('foo')));
assert(!isFinalizationRegistry(1n));
assert(!isFinalizationRegistry(Object(1n)));
assert(!isFinalizationRegistry(new Set()));
assert(!isFinalizationRegistry(new WeakSet()));
assert(!isFinalizationRegistry(new Map()));
assert(!isFinalizationRegistry(new WeakMap()));
assert(!isFinalizationRegistry(new WeakRef({})));
assert(isFinalizationRegistry(new FinalizationRegistry(function () {})));
class MyFinalizationRegistry extends FinalizationRegistry {}
assert(isFinalizationRegistry(new MyFinalizationRegistry(function () {})));
Tests
Simply clone the repo, npm install, and run npm test