How to add data to the anchor tag in HTML and access it using jQuery?

Question

Following is my HTML code of an anchor tag:

<a delhref="http://localhost/eprime/entprm/web/control/modules/questions/manage_question_issue.php?op=fixed&question_id=21627&que_issue_status=0" title="Fixed" href="#fixedPopContent" class="fixed">Fixed</a>

Now I want to add a question id to the above anchor tag and access it back in jQuery when user clicks on this hyperlink. For it I tried below code but it didn't work out for me.

<a delhref="http://localhost/eprime/entprm/web/control/modules/questions/manage_question_issue.php?op=fixed&question_id=21627&que_issue_status=0" title="Fixed" href="#fixedPopContent" class="fixed" data="21627">Fixed</a>

The jQuery code for it is as follows:

$(document).ready(function()  {
  $(".fixed").click(function(e) {
    var t2 = $(this).data();
    alert(t2);
  });
});

It's giving me the message [object Object] in alert box. Can anyone please help me in setting the value to a anchor tag and accessing it in jQuery?

Answer 1

try something like this

html

 <a  href="#fixedPopContent" class="fixed" data-q_id="21627"></a>

javascript

$(document).ready(function()  {
  $(".fixed").click(function(e) {
    var t2 = $(this).data('q_id');
    alert(t2);
  });
}); 

you can add attribute data-sample_name on your html element. In jquery use

$('your_element_id').data('sample_name');// to get value
$('your_element_id').data('sample_name','new value');// to set  value

Answer 2

I assume you are trying to do something like this:

$(document).ready(function()  {
  // you can change the selector, `"key"` and its value below
  $("a.fixed").data("key", 21627); // on document ready, store the necessary data
  //                        ^-- Insert a dynamic value here if required

  $(".fixed").click(function(e) {    
    alert($(this).data("key"));  // 21627
  });

});

.data() stores a key-value pair. So here, I made a key called 'key' and stored with it a value of 21627 and on click, alerted the value corresponding to the key 'key'.

You got a [object Object] because of the same reason that .data() stores data in an object and that by passing it zero arguments, you were essentially storing the object associated with .fixed into t2.