How to set mode to development or production in the config file?
问题 We are migrating to webpack 4. We do have dev / prod config files already. We started getting this warning message: WARNING in configuration The 'mode' option has not been set. Set 'mode' option to 'development' or 'production' to enable defaults for this environment. We can get around this by passing --mode production in the cmdline like below: npm run webpack --mode development ... As is mentioned on the webpack documentation, blog and everywhere else on the internet. How can we set the