- A statement such as f(g(x)) becomes absurd without parentheses.
- Indentation has a meaning, but it is legal to have inconsistent indentation.
Code is written once, read many times. Coffeescript got that backwards.
CoffeeScript is to JavaScript what Stenography is to Writing. Steno makes sense when you have to write something being dictated to you in real-time, but if you are not in a hurry, just write.
This was a feature I actually enjoyed.
Y'all just aren't used to ML syntax.
Though some of their constructs, like classes and for-in loops - are great for reading and writing.
If we weigh the convenient aspects of CoffeeScript against the inconvenient aspects, in the end, CoffeeScript can be an inconvenient language to use. It was the case at least for me in various projects I had to maintain.
Part of the inconvenience was all the JavaScript tooling you cannot use, and occassionally being forced to read JavaScript code generated by CoffeeScript.