Cannot get / change JS server manual

Question

I am trying to make a React JS tutorial and try to start the server in node. First I uploaded all the files to https://github.com/reactjs/react-tutorial/ , after which I entered the folder, then I invite her team. and type npm install, then node server.js "Server is running: // localhost: 3000./

Then, when I go to localhost: 3000.is said it could not get /.

What is the problem?

Answer 1

Are you entering localhost: 3000 without a period?

Answer 2

React JS. , , node JS ..

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React JS -