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#JavascriptInterview #ReactInterview #ReactJS

React Interview Question on building the Polyfill of useEffect Hook or its custom implementation will be created in this video along with tips and tricks to tackle your React JS and JavaScript Questions in Frontend Machine Coding Interviews.

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00:00 Intro
00:13 What is useEffect Hook?
01:15 useEffect to fetch API Data
04:00 Render the data
04:35 Other useEffect uses
04:48 GUVI Sponsorship
06:13 Simple Counter Example
07:57 Empty Dependency Array
08:20 When Dependenc Array Changes
09:07 No Dependency Array
09:41 Cleanup or Unmounting
10:57 useEffect Polyfill Implementation
16:37 Testing the Custom Hook
17:43 Cleanup Implementation
20:21 More such videos

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