guardia-messenger/node_modules/which-collection/README.md
DESKTOP-TKLFCPRython f29f525c77 refactor: 101.79.17.164 → zioinfo.co.kr 전체 도메인 변환 + Manager UI 배포
- 37개 파일 IP → zioinfo.co.kr 치환 (소스/매뉴얼/설정/하네스)
- Manager DrConsole/NetworkConsole/CsapConsole 빌드 + /var/www/manager/ 배포
- 테스트: Manager HTTP 200, ITSM 신규 API 7개 전체 200

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-31 10:09:17 +09:00

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Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without instanceof, and despite Symbol.toStringTag.

Example

var whichCollection = require('which-collection');
var assert = require('assert');

assert.equal(false, whichCollection(undefined));
assert.equal(false, whichCollection(null));
assert.equal(false, whichCollection(false));
assert.equal(false, whichCollection(true));
assert.equal(false, whichCollection([]));
assert.equal(false, whichCollection({}));
assert.equal(false, whichCollection(/a/g));
assert.equal(false, whichCollection(new RegExp('a', 'g')));
assert.equal(false, whichCollection(new Date()));
assert.equal(false, whichCollection(42));
assert.equal(false, whichCollection(NaN));
assert.equal(false, whichCollection(Infinity));
assert.equal(false, whichCollection(new Number(42)));
assert.equal(false, whichCollection(42n));
assert.equal(false, whichCollection(Object(42n)));
assert.equal(false, whichCollection('foo'));
assert.equal(false, whichCollection(Object('foo')));
assert.equal(false, whichCollection(function () {}));
assert.equal(false, whichCollection(function* () {}));
assert.equal(false, whichCollection(x => x * x));
assert.equal(false, whichCollection([]));

assert.equal('Map', whichCollection(new Map()));
assert.equal('Set', whichCollection(new Set()));
assert.equal('WeakMap', whichCollection(new WeakMap()));
assert.equal('WeakSet', whichCollection(new WeakSet()));

Tests

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