[stcredzero]

Yes, that is the price. That's the price for native access to the entire codebase of the underlying editor.

So long as it's close enough, you don't need perfect compliance.

[lucian1900]

I disagree. If the support isn't perfect, you might as well not bother and help people learn your native language.

[stcredzero]

I think the popularity of CoffeeScript is a datapoint against your idea. I bet a lot of pythonistas use it because it's less of a shift than Javascript. Also, in such a system, if people are curious enough, they will learn the native implementation language as a result of the system being so constructed.

[lucian1900]

I'm not sure it's a datapoint against; most people I talk to use it because it fixes objective flaws in JavaScript.