Hi Juliana! So, this repo has two files- index.js and morning.js.
Morning.js has everything from our coderpad this morning, including the background on the problem.
What you want to do is go into index.js and begin uncommenting the tests one by one, making each work before you move onto the next. You'll do this by matching creating the function the test is calling, and make what it returns the equivalent of the other half of the test.
To run the uncommented tests, you can just use npm test from the command line.