设置文本字段限制

Question

我有一个文本字段。 我想让这个字段只接受10位数，如果输入的数字大于10或小于10，则抛出错误

<td><input name="Number" type="text" id="Number" value="" required/></td>

    document.getElementById('Number').onchange = function()
    {
          if(this.value > 11){
               this.value = "Please Check the Ticket Number Again";
          }
          if(this.value < 10){
               this.value = "Please Check the Ticket Number Again";
          }
    }

Answer 1

试试这段代码：

<td><input name="Number" type="text" id="Number" value="" required/></td>

    document.getElementById('Number').onchange = function()
    {
          if(this.value.length != 10){
               this.value = "Please Check the Ticket Number Again";
          }

    }