rjjakes/es6-babel-npm-module.md

## es6-babel-npm-module.md

      
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              es6-babel-npm-module.md
            
          
    Create and publish an ES6 npm module using yarn and babel.

Create a new npm project:
npm init 

Create source/ and distribution/ directories/
mkdir source && mkdir distribution

Create source/index.js and source/test.js files.
Install babel:
yarn add babel-cli@6 babel-preset-es2015@6 --dev 

Add the following to your package.json
  "scripts": {
    "build": "babel source --presets babel-preset-es2015 --out-dir distribution",
    "test": "node ./distribution/test.js",
    "prepare": "yarn run build"
  },

Now compile and test your code:
yarn run build && yarn run test 

Set the entry point of your module to the distribution code by adding this to package.json:
  "main": "./distribution/index.js",

Publish your module to npm:
npm publish

Note that the "prepare" command in package.json will be run each time you yarn or npm publish