如何使用JavaScript获取不带ID的输入值？

Question

I have an editable DataTabe and when edit mode, the generated html is exactly as shown below:

<td><form><input autocomplete="off" name="value" ></form></td>

There is s TextBox as input and I need t get the value of this input. However, I cannot give id as there is no configuration of DataTable and I decided to get the value using Javaascipt. I have tried many different methods like closest() as shown below, but cannot get the value. Is it possible to grab it?

var $row = $(this).closest("tr"); 
$tds = $row.find("td");

Answer 1

You might use document.querySelector :

var input = document.querySelector('[name="value"]`);

Or, using jQuery, you could also use the same selector:

var input = $('[name="value"]');

Answer 2

您的问题很难理解，可以直接使用jQuery定位name属性（我看到您使用的是jQuery，而不是JavaScript），并使用.val（）来获取输入值，如下所示：

$("input[name='value']").val();

Answer 3

var currentInput=null;

$("input").focus(function(e)
{
   currentInput=e.target or this;//here you can get currently editing textfeild or may be $(this) if this is wrong
});

then you can get currentInput.value()