Products Web Updates By Tag All Updates tagged: maps Collecting and Iterating, the ES6 Way Maps, Sets, and for...of iteration are ES6 features that can change the way you work with collections of data. Read more Tags: news iterators es6 sets collections maps Subscribe Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated February 9, 2017.