title: Take array of strings and add to new array so all elements are length 8
body: <p>For example if I have this list of strings:
  ['00000', '1101', '101', '001', '01', '101', '0011']</p>
  <p>how can I add these strings together to a new array so that the length of each element is 8?</p>
  <p>the result: ['00000110', '11010010', '11010011']</p>