In this project I want to show you how we could use the API Portals of React to create modal windows over our applications.

React Portals provide a first-class way to render children into a DOM node that exists outside the DOM hierarchy of the parent component.

As the documentations states, React Portals could be useful 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.

• How to create a modal using ReactDOM.createPortal

• Seeing how the events propagate to the parent component that creates the portal although the DOM hierarchy was different because of the portal.

Use yarn start to run the app in the development mode and open http://localhost:3000 to view it in the browser.

• React Portals documentation
• React Portals. Una introducción