JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//yastatic.net/es5-shims/0.0.2/es5-shims.min.js"></script>
<script src="//yastatic.net/share2/share.js"></script>
<div id="my-share" data-services="vkontakte,facebook,odnoklassniki,moimir,gplus,twitter,linkedin" data-counter=""></div>

JavaScript

Ya.share2('my-share', {
    hooks: {
        onready: function () {
            alert('блок инициализирован');
        },

        onshare: function (name) {
            alert('нажата кнопка' + name);
        }
    }
});