isWeakMap.js 243 Bytes Raw Blame History Permalink 1 2 3 4 5 import tagTester from './_tagTester.js'; import { isIE11 } from './_stringTagBug.js'; import { ie11fingerprint, weakMapMethods } from './_methodFingerprint.js'; export default isIE11 ? ie11fingerprint(weakMapMethods) : tagTester('WeakMap');