How to get value of checkbox in table?

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How i can get value of checkbox in table , I want use for in this case in order get parameter.Now , please see html table

HTML

<table id="div_func" class="table table-bordered" style="width: 100%">
                                        <thead>
                                            <tr>
                                                <th>
                                                    <input type="checkbox" id="chk_all" /></th>
                                                <th>Name</th>
                                            </tr>
                                        </thead>
                                        <tbody>
        <tr>
        <td> <input type="checkbox" class="checkbox1" id="chk" name="check[]" value="D01" /></td>
        <td>Banana </td>
        </tr>
        <tr>
        <td> <input type="checkbox" class="checkbox1" id="chk" name="check[]" value="D02" /></td>
        <td>Orange </td>
        </tr>
        <tr>
        <td> <input type="checkbox" class="checkbox1" id="chk" name="check[]" value="D03" /></td>
        <td>Apple </td>
        </tr>
                </tbody>
                                    </table>

And this is my script , I use for get value in checkbox , then put parameter in array

JavaScript

function add_funcgroup() {
              var func_group = [];
              var chk_allow = "";
              var table = document.getElementById("div_func");
              for (var i = 0; i < table.rows.length; i++) {
                  if ($('#chk')[i].is(':checked')) {
                      chk_allow = "True";
                  }
                  else {
                      chk_allow = "False";
                  }
                  var group_func = {
                      GROUP_MOD_ID: id_temp,
                      FUNCTION_MOD_ID: $('#chk')[i].val(),
                      ALLOW: chk_allow
                  };
                  func_group[i] = group_func;
              }

              var func_group_temp = {
                  FUNC_MOD: func_group
              };

              var DTO = {
                  'func_group_temp': func_group_temp
              };
              $.ajax(
              {
                  type: "POST",
                  url: "../BUS/WebService.asmx/ADDFUNCTIONGROUP",
                  data: JSON.stringify(DTO),
                  contentType: "application/json; charset=utf-8",
                  dataType: "json",
                  success: function (data) {

But it's not work . error

HTML

Uncaught TypeError: $(...)[i].is is not a function

Posted 12-Jun-15 20:09pm

headshot9x

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-06-12T20:43:00

Your bug is more than apparent. This "HTML" code is not valid HTML. The reason is: all values of all id attributes should be unique. If they are not unique, the page will be rendered, but the use of this attribute can give you unpredictable results.

If you support unique value of this attribute, you can get the HTML elements using it, the way you already do.

I do understand that you are trying to do some action on the whole set of elements. Of course, you can do it, and it would be a very typical use of jQuery, only you need to use some other selectors, not id selectors. Please see:
http://api.jquery.com/category/selectors[^].

—SA