JSFiddle - React, Tailwind, and code Playground

HTML

<div onclick="selectItem(Math.random())">click me</div>
<script>
    function selectItem(id) {
        var event_data = {
            myid: id
        };

        if (!arguments.callee.event) arguments.callee.event = new CustomEvent("selectItem");;
        arguments.callee.event.data = event_data; // no success here

        document.dispatchEvent(arguments.callee.event);
    }

    document.addEventListener("selectItem", function(event) {
        console.log(event.data);
    });
</script>