Morning Challenge

Objects, Arrays and Array methods

Your task is to complete as many of the functions as you can, using the instructions provided in the comments.

The following is NOT ALLOWED:

• for loops
• while loops
• Array.push
• The delete keyword

Instead, try to use array methods like .map, .filter and .reduce.

The purpose of this challenge is to get used to manipulating data, and also to get used to using array methods.

To do the challenge, clone this repo, and cd into it. Go into index.js, read the comments and follow the instructions.

Run npm test regularly to ensure your code works.