Part 72 What is dictionary in c#

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In this video, we will discuss dictionary object in c#.
1. A dictionary is a collection of (key, value) pairs.
2. Dictionary class is present in System.Collections.Generic namespace.
3. When creating a dictionary, we need to specify the type for key and value.
4. Dictionary provides fast lookups for values using keys.
5. Keys in the dictionary must be unique.