CRA: changing ports

[aishp9]

Are there any references that explain how CRA opens up in a different port if the previous port is in use?

[malcolm-kee]

You can read up the source code.

The part to choose port is here: https://github.com/facebook/create-react-app/blob/0ee4765c39f820e5f4820abf4bf2e47b3324da7f/packages/react-dev-utils/WebpackDevServerUtils.js#L448