What is a HashMap? | Data Structures | Easy explanation with animations | Study Algorithms
The term HashMap is a bit confusing because the data structure does not look like a map we know about. It is indeed more kind of a table that is used to store key value pairs. It is mostly useful in cases when you have to retrieve values in a constant time. Watch the video to understand how and when you need to use a HashMap data structure. All along with beautiful animations and visuals.
Chapters:
00:00 - Intro
01:02 - Concept Overview
01:43 - What are we trying to solve?
03:40 - Conventional Data Structures
04:18 - When to use a HashMap
06:41 - Working of a HashMap
09:35 - Live demo of HashMap
13:56 - Final Thoughts
📚 Links to topics I talk about in the video:
Array Data Structure: • Array Data Structure explained with V...
Linked List: • Linked List Data Structure explained ...
HashSet: • What is a HashSet? | Data Structures ...
Binary Trees: • Binary Trees Introduction | Different...
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