Write a function that find all the paths from a node that are loops back to itself.
The first argument to the function should be the node and the second should be a list that describes each edge in the graph.
For example, allLoopsBack(2, [ [1, 2], [2, 3], [1, 3], [3, 4], [4, 2], [5, 6] ]) should
return [[ 2, 3, 4, 2 ]]. See tests/index.spec.js for examples.
You are able to use any javascript library you like in the implementation.
The tests should pass in the test directory should all pass.
Ensure you have a recent stable node installed.
Run npm install to install the test requirements.
npm test