output anything to the console. --no-info: suppress boring information. --colors: add some colors to the output. --no-colors: don’t used colors in the output. --host <hostname/ip>: hostname or IP. --port <number>: port. --inline: embed the webpack-dev-server runtime into the bundle. --hot: adds the HotModuleReplacementPlugin and switch the server to hot mode. Note: make sure you don’t add HotModuleReplacementPlugin twice. --hot --inline also adds the webpack/hot/dev-server entry. --lazy: no watching, compiles on request (cannot be combined with --hot). --https: serves webpack-dev-server over HTTPS Protocol. Includes a self-signed certificate that is used when serving the requests. --cert, --cacert, --key: Paths the certificate files.