24 lines
740 B
JavaScript
24 lines
740 B
JavaScript
'use strict';
|
|
var aSet = require('../internals/a-set');
|
|
var SetHelpers = require('../internals/set-helpers');
|
|
var clone = require('../internals/set-clone');
|
|
var getSetRecord = require('../internals/get-set-record');
|
|
var iterateSimple = require('../internals/iterate-simple');
|
|
|
|
var add = SetHelpers.add;
|
|
var has = SetHelpers.has;
|
|
var remove = SetHelpers.remove;
|
|
|
|
// `Set.prototype.symmetricDifference` method
|
|
// https://github.com/tc39/proposal-set-methods
|
|
module.exports = function symmetricDifference(other) {
|
|
var O = aSet(this);
|
|
var keysIter = getSetRecord(other).getIterator();
|
|
var result = clone(O);
|
|
iterateSimple(keysIter, function (e) {
|
|
if (has(O, e)) remove(result, e);
|
|
else add(result, e);
|
|
});
|
|
return result;
|
|
};
|