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'use strict';
var aSet = require('../internals/a-set');
var size = require('../internals/set-size');
var iterate = require('../internals/set-iterate');
var getSetRecord = require('../internals/get-set-record');
// `Set.prototype.isSubsetOf` method
// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSubsetOf
module.exports = function isSubsetOf(other) {
var O = aSet(this);
var otherRec = getSetRecord(other);
if (size(O) > otherRec.size) return false;
return iterate(O, function (e) {
if (!otherRec.includes(e)) return false;
}, true) !== false;
};