Getting data-* attribute for onclick event for an html element

<a id="option1" data-id="10" data-option="21" href="#" onclick="goDoSomething(?,?);">
       Click to do something
</a>

I want to get the data-id and data-option values inside the function goDoSomething(10, 21) I have tried to use this reference: this.data['id'] but it did not work.

How can I do this?

Solution 1:

You can achieve this $(identifier).data('id') using jquery,

    <script type="text/javascript">

        function goDoSomething(identifier){     
            alert("data-id:"+$(identifier).data('id')+", data-option:"+$(identifier).data('option'));               
        }

    </script>

    <a id="option1" 
       data-id="10" 
       data-option="21" 
       href="#" 
       onclick="goDoSomething(this);">
           Click to do something
    </a>

javascript : You can use getAttribute("attributename") if want to use javascript tag,

    <script type="text/javascript">

        function goDoSomething(d){
            alert(d.getAttribute("data-id"));
        }

    </script>

    <a id="option1" 
       data-id="10" 
       data-option="21" 
       href="#" 
       onclick="goDoSomething(this);">
           Click to do something
    </a>

Or:

    <script type="text/javascript">

        function goDoSomething(data_id, data_option){       

            alert("data-id:"+data_id+", data-option:"+data_option);
        }

    </script>

    <a id="option1" 
       data-id="10" 
       data-option="21" 
       href="#" 
       onclick="goDoSomething(this.getAttribute('data-id'), this.getAttribute('data-option'));">
           Click to do something
    </a>

Solution 2:

Like this:

$(this).data('id');
$(this).data('option');

Working example: http://jsfiddle.net/zwHUc/

Solution 3:

I simply use this jQuery trick:

$("a:focus").attr('data-id');

It gets the focused a element and gets the data-id attribute from it.

Solution 4:

Check if the data attribute is present, then do the stuff...

$('body').on('click', '.CLICK_BUTTON_CLASS', function (e) {
                        if(e.target.getAttribute('data-title')) {
                            var careerTitle = $(this).attr('data-title');
                            if (careerTitle.length > 0) $('.careerFormTitle').text(careerTitle);
                        }
                });

Solution 5:

here is an example

 <a class="facultySelecter" data-faculty="ahs" href="#">Arts and Human Sciences</a></li>

    $('.facultySelecter').click(function() {        
    var unhide = $(this).data("faculty");
    });

this would set var unhide as ahs, so use .data("foo") to get the "foo" value of the data-* attribute you're looking to get