What are portals and when do you use them?
Model answer
createPortal renders children into a different DOM node, such as document.body, while keeping them in the same React tree for events and context. It is used for modals, tooltips and dropdowns that must escape overflow or z-index limits of a parent.
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React 19 New Features: Actions, useActionState, useOptimistic, use and More in the course React.js Full Course: Beginner to Advanced.
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