Knowledge Explorer Step 4: Remembering the Query

Give the search bar memory. Hold the current query in state in whichever component renders both the input and the results, and display it live beneath the field so you can watch it change as you type. Nothing searches anything yet. The point is to decide where the state lives, and the answer is the closest component that renders everything which needs it. Getting that wrong now means moving it later, so think about it before you write it.