> The fact something such as CoffeeScript can generate running, valid JavaScript is a testament to it's flexibility. s/Javascript/Brainfuck It's not all bad,

> The fact something such as CoffeeScript can generate running, valid JavaScript is a testament to it's flexibility. s/Javascript/Brainfuck It's not all bad, but even overlooking Standards and DOM issues, the language itself has some not insignificant, bug causing issues, as brought up in some other comments. Compiling into a strict subset of an interpreted language shouldn't be considered a sufficient alternative to a real VM, or a language without those flaws.