code: function arrayToString(a) {
    for (var i = 0, il = a.length, s = ''; i < il; i++) {
      s += a[i][0]
  
      if (a[i][1] != null) {
        s += a[i][1]
  
        if (a[i][2] != null) {
          s += ' '
          s += a[i][2]
  
          if (a[i][3] != null) {
            s += ' '
            s += a[i][3]
            s += ' '
            s += a[i][4]
  
            if (a[i][5] != null) {
              s += ' '
              s += a[i][5]
              s += ' '
              s += a[i][6]
  
              if (a[i][7] != null) {
                s += ' '
                s += a[i][7]
              }
            }
          }
        }
      }
    }
  
    return s + ' '
  }
docs: PathArray Helpers