Data Structures
Ruby Sets
Working with Sets
Ruby sets use Set class for unique elements.
Introduction to Ruby Sets
In Ruby, a Set is a collection of unordered values with no duplicates, providing an efficient way to store and manipulate unique items. Sets are part of the Ruby Standard Library and require the 'set' library to be included. They are particularly useful when you need to ensure that a collection of items contains no duplicates.
Creating and Using Sets
To utilize a set in Ruby, you need to require 'set'. You can then create a set using Set.new and pass an array of elements. The Set will automatically remove any duplicate elements.
Basic Set Operations
Ruby's Set class provides various methods for manipulating sets, such as adding and removing elements, checking for the presence of an element, and set operations like union, intersection, and difference.
Adding and Removing Elements
You can add elements to a set using the add method and remove them with the delete method. Sets automatically manage uniqueness, so adding an element that's already present has no effect.
Set Methods and Usage
Beyond basic operations, sets in Ruby come with a variety of methods that offer more complex functionality. For instance, you can check if a set is a subset of another, find the size of a set, or iterate over a set with ease.
