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16 lines
353 B
16 lines
353 B
5 months ago
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/* eslint-disable valid-typeof */
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var staticStrUndefined = require('./staticStrUndefined')
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/**
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* 判断是否WeakSet对象
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*
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* @param {Object} obj 对象
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* @return {Boolean}
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*/
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var supportWeakSet = typeof WeakSet !== staticStrUndefined
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function isWeakSet (obj) {
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return supportWeakSet && obj instanceof WeakSet
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}
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module.exports = isWeakSet
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