April 2018
Beginner to intermediate
426 pages
10h 19m
English
In the previous chapter, we learned about sets. In this chapter, we will continue our discussion about data structures that store unique values (non-repeated values) using dictionaries and hashes.
In a set, we are interested in the value itself as the primary element. In a dictionary (or map), we store values in pairs as [key, value]. The same goes for hashes (they store values in pairs, such as [key, value]); however, the way that we implement these data structures is a little bit different as dictionaries can only store a single value per key, as we will learn in this chapter.
In this chapter, we will cover: