jQuery addClass and toggleClass not working

I created a table using datatables and added a “More” button which triggers a mini-dropdown. This button and its dropdown content show perfectly, however, when I tried to distinctively show that the button is active anytime it is clicked using jQuery’s addClass() or toggleClass() functions, the button refuses to add or toggle the “active” class.

jQuery

$( "#dropdownDatatableButton" ).click(function() {
  $( "#dropdownDatatableButton" ).addClass( "active" );
});

CSS

#datatablesDropdown .active {
    background: rgb(37, 56, 88) !important;
    color: rgb(255, 255, 255);
}

datatables

          { data: null,
        render: function ( data, type, row, meta ) {
            return '<div class="dropdown" id="datatablesDropdown">'

            + '<span class="material-icons btn datatables-more-btn" type="button" id="dropdownDatatableButton"' <!--here is the button that triggers the dropdown-->

            + 'data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">more_horiz</span>'
            + '<div class="dropdown-menu dropdown-menu-right datatables-dropdown-inner"'
            + ' aria-labelledby="dropdownDatatableButton">'
            + '<ul>'
            + '<li><a href="' + data.url.toLowerCase() + '/settings' + '">Board settings</a></li>'
            + '<li><a class="btn btn-link btn-sm text-left">Delete</a></li>'
            + '</ul>'
            + '</div>'
            + '</div>';
        },
    },
],

Answer

IDs must be unique in a page and you will also need to delegate the event listener since the plugin does re-renders for page changes, search, sort etc.

In addition you want to target the specific button the event occurred on

Try:

$('table').on('click', ".dropdownDatatableButton" ,function() {
  $(this).toggleClass( "active" );
});

And change the ID to class in the html and css.

See: Understanding Event Delegation

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Answer