Add specific javascript code to a wordpress page

Question

I have found some code I want to use to a single page in my wordpress site, but I cannot find the way to do it. I am not a developer, but a newbie.

I have html and css ready, but I don't know how to run this javascript code to a page with id 2922 , every time the page loads.

$(function () {
var parent = $("#shuffle");
var divs = parent.children();
while (divs.length) {
    parent.append(divs.splice(Math.floor(Math.random() * divs.length), 1)[0]);
}
});

Thanks for your help, Thodoris

Answer 1

You can do this from jQuery. In your script add condition to check if body has class of that page id is same as your page-id-2922 , if yes then run the code.

I have updated your script, try using it:

$(function () {

    if( $('body').hasClass('page-id-2922') == true ){
        var parent = $("#shuffle");
        var divs = parent.children();
        while (divs.length) {
            parent.append(divs.splice(Math.floor(Math.random() * divs.length), 1)[0]);
        }
    }

});

Answer 2

You can add it into the single.php with a conditional like so:

<?php if ( is_page(3318) ) : ?>
    <script type='text/javascript'>
        $(function () {
            var parent = $("#shuffle");
            var divs = parent.children();
            while (divs.length) {
                parent.append(divs.splice(Math.floor(Math.random() * divs.length), 1)[0]);
            }
        });
    </script>
<?php endif; ?>

It will add the escript on the page only if it is the single post with ID 3318.

EDIT: added right answer and changed to the correct ID.

Answer 3

You can write this code in footer.php[site/wp-content/your-theme/footer.php]

<?php if(get_the_ID()== 2922){ ?>
 <script type='text/javascript'>
        jQuery(function () {
            var parent = jQuery("#shuffle");
            var divs = parent.children();
            while (divs.length) {
                parent.append(divs.splice(Math.floor(Math.random() * divs.length), 1)[0]);
            }
        });
    </script>

or read this https://www.tipsandtricks-hq.com/how-to-add-javascript-in-a-wordpress-post-or-page-1845