Drag the edges to resize the window.

In Projects, you can keep track of your progress as you go throught the tasks. Check each item as you complete it!

Code Editor

This is new territory! You've never seen a component rendered by another component before.

You have seen a component rendered before, though, by ReactDOM.render.

When a component renders another component, what happens is very similar to what happens when ReactDOM.render renders a component.

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