React npm start show something in new version

Dec 18 '21 Comments: 6 Answers: 2

9

I found something new output in new version, I don't know what its name.

There are picture below, green text.

After npm start

Previous version only show

Local: http://localhost:3000
On Your Network: http://192.168.1.108:3000
Note that the development build is not optimized.

To create a production build, use npm run build.

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