developer-roadmap/roadmaps/javascript/content/keyed-collections@rhJrrqkRqy2Qw_he4SPGz.md

Keyed Collections

Keyed collections are data structures that store values indexed by keys. In JavaScript, Map and WeakMap are keyed collections that allow any value, including objects and functions, to be used as a key. Unlike plain objects, Maps maintain insertion order and provide methods like get(), set(), and has().

Visit the following resources to learn more:

• @article@Keyed collections
• @article@ES6 keyed collections- Maps and sets
• @video@Creating keyed collection