Property 'dataset' does not exist on type 'EventTarget'

When trying to access the dataset on a button after a click, I get this^ error. linkProvider = (ev: React.SyntheticEvent<EventTarget>) => { console.debug('ev.target', ev.target.dataset['ix']) // error } // in render providers.map((provider, ix) => ( <button key={provider} data-ix={ix} onClick={this.linkProvider}>{provider}</button> )) Any ideas how to make it work?

[kitokitoki]

data属性、dataset“EventTarget”