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PopperUnstyled API

API reference docs for the React PopperUnstyled component. Learn about the props, CSS, and other APIs of this exported module.

Demos

For examples and details on the usage of this React component, visit the component demo pages:

Import

import PopperUnstyled from '@mui/base/PopperUnstyled';
// or
import { PopperUnstyled } from '@mui/base';
You can learn about the difference by reading this guide on minimizing bundle size.

Poppers rely on the 3rd party library Popper.js for positioning.

Props

Props of the native component are also available.

NameTypeDefaultDescription
open*boolfalse
If true, the component is shown.
anchorElHTML element
| object
| func
An HTML element, virtualElement, or a function that returns either. It's used to set the position of the popper. The return value will passed as the reference object of the Popper instance.
childrennode
| func
Popper render function or node.
containerHTML element
| func
An HTML element or function that returns one. The container will have the portal children appended to it.
By default, it uses the body of the top-level document object, so it's simply document.body most of the time.
direction'ltr'
| 'rtl'		'ltr'
Direction of the text.
disablePortalboolfalse
The children will be under the DOM hierarchy of the parent component.
keepMountedboolfalse
Always keep the children in the DOM. This prop can be useful in SEO situation or when you want to maximize the responsiveness of the Popper.
modifiersArray<{ data?: object, effect?: func, enabled?: bool, fn?: func, name?: any, options?: object, phase?: 'afterMain'
| 'afterRead'
| 'afterWrite'
| 'beforeMain'
| 'beforeRead'
| 'beforeWrite'
| 'main'
| 'read'
| 'write', requires?: Array<string>, requiresIfExists?: Array<string> }>
Popper.js is based on a "plugin-like" architecture, most of its features are fully encapsulated "modifiers".
A modifier is a function that is called each time Popper.js needs to compute the position of the popper. For this reason, modifiers should be very performant to avoid bottlenecks. To learn how to create a modifier, read the modifiers documentation.
placement'auto-end'
| 'auto-start'
| 'auto'
| 'bottom-end'
| 'bottom-start'
| 'bottom'
| 'left-end'
| 'left-start'
| 'left'
| 'right-end'
| 'right-start'
| 'right'
| 'top-end'
| 'top-start'
| 'top'		'bottom'
Popper placement.
popperOptions{ modifiers?: array, onFirstUpdate?: func, placement?: 'auto-end'
| 'auto-start'
| 'auto'
| 'bottom-end'
| 'bottom-start'
| 'bottom'
| 'left-end'
| 'left-start'
| 'left'
| 'right-end'
| 'right-start'
| 'right'
| 'top-end'
| 'top-start'
| 'top', strategy?: 'absolute'
| 'fixed' }		{}
Options provided to the Popper.js instance.
popperRefref
A ref that points to the used popper instance.
slotProps{ root?: func
| object }		{}
The props used for each slot inside the Popper.
slots{ root?: elementType }{}
The components used for each slot inside the Popper. Either a string to use a HTML element or a component.
transitionboolfalse
Help supporting a react-transition-group/Transition component.

The ref is forwarded to the root element.