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NOTE https://bitbucket.org/rainydio/node-babel-plugin-thin-arrows fork

Works on babel v6 IFF babylon/lib/index.js is patched with exports.plugins = plugins;.

Thin arrow function expression syntax for babel.

[1, 2, 3].map(v -> {
	return v * 2;
});

Installation

npm install --save-dev git+https://github.com/andreineculau/babel-plugin-thin-arrows

Disclaimer

It's monkey-patching babylon parser to turn () -> { } into function expression. Keep in mind that this is not supported and not recommended by babel developers.

loganfsmyth [9:26 PM]

custom syntax isn’t supported, monkey-patching the parser is really not recommended

About

It's using somewhat same approach that JSX and Flow plugins. But cutting a corner by not introducing new token ThinArrowFunctionExpression. Mostly because babel-types isn't extensible and it's hard to monkey-patch it.