编译具有所有功能的Node.js的TypeScript

Question

If I compile TypeScript for Node.js with

tsc --module commonjs --target ES5

I can't use async / await or generators because tsc doesn't know how to compile it to ES5.

That can be fixed if I compile TypeScript for Node.js with

tsc --module commonjs --target ES6

but then I can't use default parameters or destructuring assignment, because Node.js doesn't support them. tsc knows how to compile those to ES5, but it only does it if you actually target ES5.

How can I target Node.js with support for all of TypeScript's features?

Answer 1

You should be fine with running your ES6 compiled code in latest node.js (v5.x). To enable the particular ES6 featuresthat are not enabled by default you should use --harmony flags. Like this for example:

node --harmony-destructuring

For the complete list of possible harmony features to play with - run:

node --v8-options | grep harmony