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Create a timer that can be started and stopped

This repository is the companion to the reactpractice.dev exercise to create a countdown timer. Check out the blog post for more details.

Create a 5 minute countdown timer that can be started and stopped.

When the page is first loaded, the counter displays 5 minutes (i.e. 5:00)
When the user clicks "Start", the counter starts counting down.
When the user clicks "Stop", the timer should start elapsing time.
When the user clicks "Reset", the timer should be reset to 5 minutes again

Use React with Typescript to build you solution.

Getting started with this repo

Run npm install before you get started.
Add your code to the src/countdown-timer.tsx file.
Run the app with npm start