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    Using createRef() to reference a node in a child component in React 16.3

    In this lesson we'll use the new createRef() method to retrieve a node in a child component and pass it back to it's parent component. We'll also show how you can use a ref in a functional component with createRef().

    Additional Resources: https://reactjs.org/docs/refs-and-the-dom.html#exposing-dom-refs-to-parent-components

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