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node_modules/core-js/internals/set-is-superset-of.js

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+'use strict';
+var aSet = require('../internals/a-set');
+var has = require('../internals/set-helpers').has;
+var size = require('../internals/set-size');
+var getSetRecord = require('../internals/get-set-record');
+var iterateSimple = require('../internals/iterate-simple');
+var iteratorClose = require('../internals/iterator-close');
+
+// `Set.prototype.isSupersetOf` method
+// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf
+module.exports = function isSupersetOf(other) {
+  var O = aSet(this);
+  var otherRec = getSetRecord(other);
+  if (size(O) < otherRec.size) return false;
+  var iterator = otherRec.getIterator();
+  return iterateSimple(iterator, function (e) {
+    if (!has(O, e)) return iteratorClose(iterator, 'normal', false);
+  }) !== false;
+};