Each .js file contains a problem and a solution from Project Euler. Solutions have comments in them explaining the solution. Because the solutions are written in javascript you can copy and paste them onto a browser console in order to test them yourself (cmd + opt + k/j for Firefox/Chrome respectively). I personally used node to run all the files to check to make sure it worked.
You can find out more about Project Euler by clicking the link.
A few things to note.
- These are not the only ways to solve the problems simply the way I choose to solve them.
- If you have not tried the problems yourself you should not look at any of the .js files.
- Some solutions may use a library. To get them to work you will need to run
yarn install.