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