<a href="http://hapijs.com"><img src="https://raw.githubusercontent.com/hapijs/assets/master/images/family.png" width="180px" align="right" /></a> # @hapi/topo Topological sorting with grouping support. [![Build Status](https://secure.travis-ci.org/hapijs/topo.svg?branch=master)](http://travis-ci.org/hapijs/topo) ## Usage See the [API Reference](API.md) **Example** ```js const Topo = require('topo'); const morning = new Topo(); morning.add('Nap', { after: ['breakfast', 'prep'] }); morning.add([ 'Make toast', 'Pour juice' ], { before: 'breakfast', group: 'prep' }); morning.add('Eat breakfast', { group: 'breakfast' }); morning.nodes; // ['Make toast', 'Pour juice', 'Eat breakfast', 'Nap'] ```