How to decrease prod bundle size?

Question

I have a simple app, initialized by angular-cli.

It display some pages relative to 3 routes. I have 3 components. On one of this page I use lodash

Answer 1

Check you have configuration named "production" for ng build --prod, since it is shorthand for ng build --configuration=production No answer solved my problem, because the problem was sitting right in front of the screen. I think this might be quite common... I've internationalized the app with i18n renaming all configurations to e.g. production-en. Then I built with ng build --prod assuming, that the default optimization is used and should be close to optimal, but in fact just ng build has been executed resulting in 7mb bundle instead of 250kb.