# Clone repo
git clone http://github.com/elijahboston/flatten
# Change directory
cd flatten
# Install packages
npm i
# Run tests
npm run test
npm install elijahboston/flatten
const flatten = require('flatten');
const result = flatten([0, [1, 2], [3, 4, 5]]);
// result = [0, 1, 2, 3, 4, 5]