Why is angular eating up RAM?

Question

Angular

The included dev server of angular devours gradually devours random access memory. You can turn on the dev server and leave for a couple of hours, after this time 32GB of RAM will be clogged to the eyeballs with incomprehensible things (If you do killall -9 node, then somewhere around 30% will be freed, turn on the dev server again and the memory will continue to leave. The next killall will free already somewhere around 20% and so less and less.). This problem is only with Angular.