April 2018
Beginner to intermediate
426 pages
10h 19m
English
Content preview from Learning JavaScript Data Structures and Algorithms - Third Edition
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Structuring a dataset
A set is a collection of items that are unordered and consists of unique elements (meaning they cannot be repeated). This data structure uses the same mathematical concept as finite sets, but it is applied to a computer science data structure.
Let's take a look at the mathematical concept of sets before we dive into the computer science implementation of it. In mathematics, a set is a collection of distinct objects.
For example, we have a set of natural numbers, which consists of integer numbers greater than or equal to 0—that is, N = {0, 1, 2, 3, 4, 5, 6, ...}. The list of the objects within the set is surrounded by {} (curly braces).
There is also the null set concept. A set with no element is called a null set or ...
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