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Course Content


A web portal is a specially built website that collects data from a variety of sources, such as emails, online forums, and search engines, and presents it in a unified fashion.

Portals are a first-class technique to render children into a DOM node that is outside the parent component's DOM hierarchy. Any renderable React child, such as an element, string, or fragment, is the first argument (child).

React portals provide a first-class mechanism to render and allow child components to exist inside a Document Object Model (DOM) node, which are generally found outside the DOM. This React gateway component exists outside of the parent component's DOM hierarchy.

When we need to render child components outside of the standard DOM hierarchy without disrupting event propagation through the React component tree hierarchy, React Portal comes in handy. This is important when rendering modals, tooltips, popup messages, and other components.

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