Function forEach

src/ElementChildren.tsx:28–36

* Iterates through children that are "valid elements". * * The provided forEachFunc(child, index) will be called for each * leaf child with the index reflecting the position relative to "valid components".

(
  children,
  func: (el: React.ReactElement<P>, index: number) => void,
)

 * leaf child with the index reflecting the position relative to "valid components".
 */
function forEach<P = any>(
  children,
  func: (el: React.ReactElement<P>, index: number) => void,
) {
  let index = 0;
  React.Children.forEach(children, (child) => {
    if (React.isValidElement<P>(child)) func(child, index++);
  });
}

/**
 * Finds whether a component's `children` prop includes a React element of the