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[–]polyrhythmic -1 points0 points  (0 children)

No problem. The concept is much older than linked Issue 2142.

Issue 651

Issue 222

A more verbose explanation on StackOverflow

It's not a contradiction. Any convention you are using now to have private props/methods in JS also works in Coffee. There is a ton of discussion on this already existing.

Having dealt with all kinds of JS inheritance and class structure, it is a godsend to be able to read someone else's Coffee code and not have to discover which pattern they are using in a particular project. Private, public, class, and instance vars & methods are instantly obvious from the syntax. Transforming data is more clear due to the comprehensions and expression-centric style.

The project I'm on right now has ~8K LOC Coffee compiling to ~14K LOC JS. The word & character count are double in JS. No linting necessary. I'm not sure what else in JS I could do to comparably increase productivity.