Dictionary/Map
A basic data structure in computer science is the “associative array” known as a “map”. This structure is called a “dictionary”. Dictionaries are being used when you have key-value pairs of the information. Inputs are called keys, and outputs are called values. A dictionary is the abstract data type that can store elements so that they can be positioned quickly by using keys. Dictionary is like a container that will have a searchable assortment of items. Each item in the dictionary is stored as a key-value pair. In a dictionary, we can store multiple items with the same key.
Dictionary consists of multiple elements in terms of key and value pair. Both key and value are considered as one single pair. This is called mapping. Elements of the dictionary are enclosed in curly brackets in terms of key and value pairs. Dictionaries enable us to work with key-value pairs. Key-value pairs are two linked values where the key is the unique identifier where we can discover our data and the value is that the information.
Dictionary maps key-value pairs. It is a collection data type that has key-value pairs. A dictionary does not contain any duplicate members.
It is unordered and stores data values like a map. Thus, it is similar to the real-life dictionary with distinct key values. In a dictionary, we use keys as indexes to access elements.
The dictionary helps us to organize the collection of data. It is a special data type. Its syntax is: