Create a Custom Timer Hook in React.js | Frontend Interview Series | JavaScript | Devtools Tech

In this video we are going to create a custom timer hook in React.js. It is an intermediate interview programming question mostly asked to check your logic, way of writing code, React concepts, and how well you can implement things. We are going to deep dive into the question, discuss concepts, and code along!

00:00 Introduction & Problem Statement
02:39 Question Demo
03:37 API Blueprint
06:16 Start Functionality
11:33 Stop Functionality
15:44 Time Over Functionality
18:31 Using useCallback
21:22 UI Enhancements
22:02 Handling component unmount case
23:41 Outro

Try question here: https://www.devtools.tech/questions/s/build-a-custom-timer-hook-in-reactjs---qid---H5KlkIeowa1LrIn1mSN5
Code: https://codesandbox.io/s/use-timer-hook-d0uo7?file=/src/App.js

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