https://itnext.io/how-production-friendly-and-ready-is-your-angular-app-7496d4e89a69

Aphinya DechalertBlockedUnblockFollowFollowingApr 14There’s probably a lot of dead code in your Angular app — you know, the unnecessary bits and pieces that ends up adding kilobytes to the final deployment. Dead code is especially parts of the program that gets executed but is never actually used.

Dead code wastes time, space and memory — and Angular by nature is very fat and heavy. We’re talking MB sized kind of heavy. Unlike React and Vue, Angular has a whole host of libraries that it uses, which ends up contributing to the overall beefed up result that we see in a development environment.