'use strict'; var $ = require('../internals/export'); var aSet = require('../internals/a-set'); var remove = require('../internals/set-helpers').remove; // `Set.prototype.deleteAll` method // https://github.com/tc39/proposal-collection-methods $({ target: 'Set', proto: true, real: true, forced: true }, { deleteAll: function deleteAll(/* ...elements */) { var collection = aSet(this); var allDeleted = true; var wasDeleted; for (var k = 0, len = arguments.length; k < len; k++) { wasDeleted = remove(collection, arguments[k]); allDeleted = allDeleted && wasDeleted; } return !!allDeleted; } });