Babel 6.x presets for Node 6.x
Node 6.x comes with V8 v5.x which brings ~93% native ES6/ES2015 coverage. This preset for Babel 6 attempts to bridge the gap for the much of the remaining ~7% using Babel plug-ins.
Based on Node.js v6.0.0
Why
Babel 6.x is awesome, but simply including the ES2015 preset means you're transpiling features that your Node 6.x installation can already do faster and natively, replacing them with inferior / older code.
This preset complements existing V8-native functionality - it doesn't work around it.
The end result is nearly always a faster build and script execution time.
Included Plugins:
- Removes trailing commas from function calls (via babel-plugin-syntax-trailing-function-commas)
- CommonJS import/export module syntax (babel-plugin-transform-es2015-modules-commonjs)
Installation
Install via NPM the usual way:
npm i babel-preset-node6
Usage
.babelrc
(recommended)
Via Create a .babelrc
file in your project root, and include 'node5' in your preset path:
"presets": "node6"
Now whenever you run babel-node
, it will polyfill your app with the remaining ES2015 features that Node 6 is missing.
Via CLI
$ babel script.js --presets node6
Via Node API
If you don't want to use a project-wide .babelrc
file (as above):
;
And if you do, and you want to use vanilla node
instead of babel-node
as your CLI, you can create an entry script that references your pre-transpiled code like so:
;;
... which will then run everywhere Node can.
Of course, make sure to npm i -S babel-core
or npm i -S babel-register
respectively, to grab the NPM packages you'll need to transpile on-the-fly.
Webpack, Gulp, Browserify, etc
Follow vendor instructions and include node6
in your babel "preset" list.
How to add React support
Babel has a ready-made preset for React, and you now need to install it separately.
Just grab it via NPM:
npm i babel-preset-react
And then add it to your "presets" list in .babelrc
:
"presets": "node6" "react"
Credits
Forked and updated from @leebenson's node5 preset.