Ignore vim swapfiles
Check the lengths before doing the calculation
Replace if/nil with when
Phone number solution
Fetch grade school
Uncomment tests
Grade school first solution
First solution to ruby Hamming
Refactor map + count to just count
Fetch ruby gigasecond
Simplify the conditional

No point having an if statement return a boolean
Fetch and solve ruby gigasecond
Fetch and solve ruby gigasecond