create portal react code example

Example 1: react create app

npx create-react-app my-app
cd my-app
npm start

Example 2: react create app

yarn create react-app my-app
# or
npx create-react-app my-app
# or
npm init react-app my-app

cd my-app
yarn start # or npm start

Example 3: most common use cases of portals in react

A typical use case for portals is when a parent component has an overflow: hidden or z-index style, but you need the child to visually “break out” of its container. For example, dialogs, hovercards, and tooltips. Note: When working with portals, remember that managing keyboard focus becomes very important.

Example 4: ReactDOM.createPortal

ReactDOM.createPortal(que, donde)