What to use?
Choosing one data structure among these two depends on the usage and how we want to access the data. If we want the data to be identified by a key then we should opt for maps but if we want unique values to be stored then we should use a set.
Set vs Map in JavaScript
In JavaScript, Set and Map are two types of objects that are used for storing data in an ordered manner. Both these data structures are used to store distinct types of data inside the same object. In Maps, the data is stored as a key-value pair whereas in Set data is a single collection of values that are unique.
Let’s learn about the uses of these two data structures.
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