emacs-lisp VS Exercism - website

ERT is a good enough for most of the things I do. It is built into emacs. I can suggest the emacs-lisp track at exercism.org. They have a good guide to get you started. You can look at the tests written for the exercises either on the site itself or the github page for the track.

First to get a grasp of language use [Exercism(https://exercism.org/) anything similar. You can also practice leetcode questions in language of your choice. Leetcode may not help you with day to day stuff but it will force you out of your comfort zone and will make you think about what and how to write.

Here's a better way to learn at Javascript.info. Sprinkle in some online tutes such as Brad Traversy videos, build some mini-projects, and perhaps a coding challenge site such as edabit or exorcism.

All the exercises on https://exercism.org/ have been given a fresh coat of paint, removing their looped JSON test cases in favor of cases written fully in Raku.

https://exercism.org/ is my go-to spot when learning a new language to get lots of exercise. Just see how far you can progress.

Check out https://exercism.org/

Exercism

If you like to do exercises, I can recommend the website https://exercism.org It has al kinds of exercises and mentoring.

If you want improve your coding skills. Try https://exercism.org. They have tracks for all types of languages, including C.

exercism.org if you want to learn basics of some concepts or languages, I use it to learn other languages than the main one I work with. It's really nice IMO.