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Data Structures 101

Understand the fundamental ES6 data structures Sets, Maps, Weak Sets, and Weak Maps. Learn how these structures manage collections of unique elements and key-value pairs, improving efficiency in your JavaScript code development.

We'll cover the following...

This lesson introduces some data structures that we often use during coding: sets and maps. Using these data structures prevents us from reinventing the wheel.

A set is an unordered collection of distinct elements. An element is said to be a member of the set, if the set contains the element. Adding an element to the ...