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rOACCT/node_modules/core-js/internals/set-is-superset-of.js
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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');

			// `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;
			return iterateSimple(otherRec.getIterator(), function (e) {
			if (has(O, e) === false) return false;
			}) !== false;
			};