code: function printEvens(N) {
      try {
        var i = -1;
  
        beginning:
        do {
          if (++i < N) {
            if (i % 2 !== 0) {
              continue beginning;
            }
  
            printNumber(i);
          }
  
          break;
  
        } while (true);
  
      } catch (e) {
        debugger;
      }
    }
docs: Prints the even numbers up to N.
  
  @global
  @param {number} N