Enjoy the best of both worlds :) A statically typed language that (for the most part) feels like a dynamically typed one: like C# or Haskell.

I'd also say, you should consider your type of version-control technology. From my experience centralized systems, such as SVN, work well with monorepos. Whereas decentralized ones, such as Git, could pose some problems with monorepos; especially when it comes to branching or reverting.

I try to understand why this programming language was developed.. Very true ... helps to understand the strengths and weaknesses of the particular language. Therefore, I'd recommend to watch conference-talks of the respective language-designers.

One major benefit of trailing commas is that they play well with version control. E.g. let's say you have the following array: const myArray = [ 1 , 2 , ]; Later, you like to add an additional element: const myArray = [ 1 , 2 , 3 , ]; Then, the diff file looks as follows: const myArray = [ 1 , 2 , + 3 , ]; And not: const myArray = [ 1, - 2 + 2, + 3 ]; Which IMHO is much less descriptive.

Right to the point - it all comes down to different levels of abstraction (and that's what computer science is [all] about). Moreover, I'd like to contradict the narrative that jQuery shields from learning JS. It's the browser API (aka DOM), not the language, which is wrapped - an important distinction imho.