Property 'dataset' does not exist on type 'EventTarget' : <p>When trying to access the dataset on a button after a click, I get this^ error.</p>

<pre><code>linkProvider = (ev: React.SyntheticEvent&lt;EventTarget&gt;) =&gt; {
  console.debug('ev.target', ev.target.dataset['ix']) // error
}

// in render 
providers.map((provider, ix) =&gt; (
  &lt;button key={provider} data-ix={ix} onClick={this.linkProvider}&gt;{provider}&lt;/button&gt;
))
</code></pre>

<p>Any ideas how to make it work?</p>
