JSFiddle - React, Tailwind, and code Playground

HTML

<span id="myId" data-recipientId="2"></span>
<span id="myId2" data-recipient-id="2"></span>

JavaScript

var recipientId = $("#myId").data('recipientid');

alert(recipientId)

var recipientId = $("#myId2").data('recipientId');

alert(recipientId)