react repeat component

Repeat.js

/**
 * usage:
 *     <ul>
 *         <Repeat times="3">
 *             <li>item</li>
 *         </Repeat>
 *     </ul>
 * or
 *     <ul>
 *         <Repeat times="3">
 *             {i => <li key={i}>item {i}</li>}
 *         </Repeat>
 *     </ul>
 */
function Repeat({ children, times }) {
    const _times = typeof times === "number" ? times : parseInt(times);
    return new Array(_times).fill().map((_, i) => typeof children === "function" ? children(i) : children);
}