How to write a server in ES6?

Question

Node.js

I want to try writing code (Node, Express) in ES6. What is by far the best option to do this?
I see the plugin babel-cli
. Is that it?
And the most important question - how does it all compile, on the fly or what? How then to be in production, how does this affect the speed?
How does compiled code affect speed in general?

Answer 1

typescript, and language buns, and typing right away