React portals

Whatare portals in react

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

React portals

ReactDOM.createPortal(child, container)
// The first argument (child) is any renderable React child, such as an element, string, or fragment. 
//The second argument (container) is a DOM element.

Source: reactjs.org

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.

Similar codes

0 vote264 views1 answer
React native clear route params
Javascript React
16 votes285 views3 answers
Start react native
Javascript React
6 votes227 views2 answers
React native socket io
Javascript React
-1 vote261 views1 answer
New Map() collection in react state
Javascript React
112 votes273 views6 answers
Import bootstrap 4 in react
Javascript React
2 votes284 views1 answer
React dynamic import
Javascript React
0 vote233 views2 answers
React filter buttons
Javascript React
0 vote219 views1 answer
Create react app ssl
Javascript React
0 vote269 views1 answer
Font family react
Javascript React
7 votes268 views4 answers
React history push search params
Javascript React