Given the example React solution from your post:

```jsx
var createItem = function(itemText) {
    return <li>{itemText}</li>;
};
return <ul>{this.props.items.map(createItem)}</ul>;
```

I'd actually write that loop in React like this (and skip React Templates altogether):

```jsx
return (
  <ul>
    {this.props.items.map(item => (
      <li>{item}</li>
    )}
  </ul>
);
```