如何使用Jquery选择特定的嵌套元素

Question

I have this markup

     <table id="myexample" class="myclass">
     <thead>
     <tr>
     <th><input type="checkbox" value="tableoption1"> Username</th>
     <th> Something </th>
     <th> Something </th>
     <th> Something </th>
     <th> Something </th>
     <th> Something </th>
      <th> Something </th>

     </tr>
     </thead>
     <tbody>
     <tr>
     <td> <input id="user1" type="checkbox" value="tableoption1">  John Smith </a></td>
     <td> Nickname</td>
     <td> Address </td>
     <td> Registerd</td>
     <td>10-10-2014 </td>
     <td>09-11-2014</td>
     <td>03-02-2014</td>
     </tr>
</table>

How can I select with Jquery the input element with id=user1 ?

I have already tried this but doesnt work

 $("#users tbody tr td input").click(function(){ 
      alert ("success");
 });

Any suggestion ?

Answer 1

This should work:

$('#user1').click(function(){ 
      alert ("success");
 });

Answer 2

$( "#user1" )

试试这个，我认为这就是您要问的。

Answer 3

If you want to control when checkbox is checked:

$('#user1').click(function(){ 
    if($(this).is(":checked")){
        alert("checked!");
    }
});