Learn how to use the useEffect hook in React JS with this easy-to-follow, in less than 9-minute tutorial. Perfect for beginners or anyone transitioning from class components to functional components with hooks. In this video, I explain:
What is useEffect hook in react
The syntax of useEffect — dependency array + return array
How to handle side effects in functional components (e.g. fetching api data)
Some Issues in useEffect and solutions for it
If you are building a small React app or trying to understand how React works — this video will give you clarity on one of the most powerful hooks in React.
Checkout this playlist, where I have explained all important hooks in react
• React useEffect Explained with REAL Example
Timestamps of useEffect
00:00 - What is useEffect hook ?
00:25 - Syntax of useEffect
00:55 - Example explaining syntax
01:30 - Same example with blank dependency array
01:58 - Same example with state dependency array
02:52 - use of return that is cleanup
03:47 - why cleanup is necessary?
04:22 - Example to fetch api data
04:47 - Problems in useEffect and solutions
04:56 - Issue of Object Dependancy in useEffect and its solution
05:54 - Function Dependancy issue and solution for it
06:39 - Issue with infinite loop and solution
07:23 - Summary
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