This curiosity will take you a step further in mastering the language.
The following blogs should be of help when you decide to go down that path. The blogs are ordered based on the level of complexity of their content — from beginner-friendly to experienced level.
5. Flavio Copes
4. Xah Lee
Mathias is a developer at Google. He works on Chrome DevTools and V8 engine.
Dmitry Soshnikov is a software engineer interested in learning and education. He blogs on the topics of programming languages theory, compilers, and ECMAScript.
There you go, I'll leave you with this tweet.
Nicholas C. Zakas@slicknetDon’t leave code that you don’t understand. When something breaks, go deep to understand why. When you copy-paste code, intentionally change something and see what happens. Ask, “why does this work?”
Curiosity is the gateway to the reps necessary for mastery.00:41 AM - 08 Jan 2020
Edit (04th May 2020): Updated HTML heading tags of the linked articles.
Edit 2 (05th May 2020): Add series name.