i try to use is in es6 component and my code looks like this:
class TestComponent extends Component{

constructor(props) {
super(props);

this.displayName = 'TestComponent';
this.mixins = [LocalStorageMixin];
this.state = {
 counter:0,
};
this.onClick = this.onClick.bind(this);

}

onClick() {
this.setState({
counter: this.state.counter + 1}
);
}

render() {
return (
{this.state.counter}
);
}
};

but the state dont stay when i refrash the page... - note that if i use is at regular createclass thats work...