Web Reference: JavaScript Data Structure Set and Weaksest. Sets lets you store unique values of any type. We understand its syntax, use and some cool applications. In this tutorial, you will learn about JavaScript Sets and WeakSets with the help of examples. A WeakSet is a collection of garbage-collectable values, including objects and non-registered symbols. A value in the WeakSet may only occur once. It is unique in the WeakSet's collection.
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