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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/isWeakSet.js

@@ -0,0 +1,15 @@
+/* eslint-disable valid-typeof */
+var staticStrUndefined = require('./staticStrUndefined')
+
+/**
+  * 判断是否WeakSet对象
+  *
+  * @param {Object} obj 对象
+  * @return {Boolean}
+ */
+var supportWeakSet = typeof WeakSet !== staticStrUndefined
+function isWeakSet (obj) {
+  return supportWeakSet && obj instanceof WeakSet
+}
+
+module.exports = isWeakSet