React & Typescript: Using React.Children.toArray() with React.cloneElement()

Trying to clone props children when using React with Typescript, you may run into the following type error: Type 'string' is not assignable to type ReactElement....

  .map(child => React.cloneElement(child));

The problem is that ReactChild includes string | number, which is not a valid clone target.

To solve the issue, add a type guard that checks whether the child is a valid element to clone, passing non-cloneable children through as-is:

  .map(child => React.isValidElement(child) ? React.cloneElement(child) : child);