How to choose between Coffee-Script and TypeScript for GameDev?

Question

JavaScript

I've been sitting and playing with online compilers for two days, but I can't make a choice.
The association has really developed with a coffee machine from which, as if under pressure, fiery coffee breaks out into a cup , but there will still be foam from the cream on top.
Coffee is coffee-script, which, with its writing speed, resembles a
boiling stream, but typescript seems to be the same foam that is always on top.
That is, typescript, it seemed to me, is like Kanji, compared to calligraphic js coffee-script code.
In human language, the words above can be interpreted as - on coffee-script you will do everything very, very quickly, which will allow you to do twice as much.
But I choose a language for writing games, where the speed of code execution may have a greater advantage in relation to the speed of writing.
What can you recommend? Does this or that have bottlenecks or other shortcomings that could tip the scales in one direction or another?

Answer 1

It should probably be noted that all TypeScript features are close to the implementations of those in the upcoming ES6, which is actually important.