text: // Link to the problem: https://www.hackerrank.com/challenges/js10-switch/problem
  
  function getLetter(s) {
      let letter = s[0];
      // Write your code here
      switch(letter){
          case 'a':
          case 'i':
          case 'e':
          case 'o':
          case 'u':
              return 'A';
          case 'b':
          case 'c':
          case 'd':
          case 'f':
          case 'g':
              return 'B';
          case 'h':
          case 'j':
          case 'k':
          case 'l':
          case 'm':
              return 'C';
          default:
              return 'D';
      }
      return letter;
  }
  