How to optimise JS for execution?

So, I'm the people of hashnode can help me out here. I urge everyone to read the full question before answering!!

When I say optimise I mean the execution times. I.e. which loops are faster, how to minimise memory size and so on.

I DO NOT mean network speeds like downloads, caching etc.

I wondered if anyone knows any books or articles about this topic. I've found some myself but resources seem to be getting a bit thin now.

I primarily need resources targeting strings, objects & arrays, DOM interaction and for/if methods,and as a final thought anything on webpack. However, any resources would be greatly appreciated.