把数组排成最小的数|算法专题

    function PrintMinNumber(numbers) {
      if (!numbers || numbers.length === 0) {
        return "";
      }
      return numbers.sort(compare).join('');
    }

    function compare(a, b) {
      const front = "" + a + b;
      const behind = "" + b + a;
      return front - behind;
    }