Button API
API reference docs for the React Button component. Learn about the props, CSS, and other APIs of this exported module.
Component demos
Import
import Button from '@mui/joy/Button';
// or
import { Button } from '@mui/joy';
A ref for imperative actions. It currently only supports focusVisible()
action.
Type:func
| { current?: { focusVisible: func } }
The color of the component. It supports those theme colors that make sense for this component.
To learn how to add your own colors, check out Themed components—Extend colors.
Type:'danger'
| 'neutral'
| 'primary'
| 'success'
| 'warning'
| string
Default:'primary'
The component used for the root node. Either a string to use a HTML element or a component.
Type:elementType
If true
, the loading indicator is shown and the button becomes disabled.
Type:bool
Default:false
The node should contain an element with role="progressbar"
with an accessible name. By default we render a CircularProgress
that is labelled by the button itself.
Type:node
Default:<CircularProgress />
The loading indicator can be positioned on the start, end, or the center of the button.
Type:'center'
| 'end'
| 'start'
Default:'center'
The size of the component.
To learn how to add custom sizes to the component, check out Themed components—Extend sizes.
Type:'sm'
| 'md'
| 'lg'
| string
Default:'md'
The props used for each slot inside.
Type:{ endDecorator?: func
| object, loadingIndicatorCenter?: func
| object, root?: func
| object, startDecorator?: func
| object }
Default:{}
The components used for each slot inside.
See Slots API below for more details.
Type:{ endDecorator?: elementType, loadingIndicatorCenter?: elementType, root?: elementType, startDecorator?: elementType }
Default:{}
The system prop that allows defining system overrides as well as additional CSS styles.
See the `sx` page for more details.
Type:Array<func
| object
| bool>
| func
| object
The global variant to use.
To learn how to add your own variants, check out Themed components—Extend variants.
Type:'outlined'
| 'plain'
| 'soft'
| 'solid'
| string
Default:'solid'
ref
is forwarded to the root element.Theme default props
You can use JoyButton
to change the default props of this component with the theme.
To learn how to customize the slot, check out the Overriding component structure guide.
The component that renders the start decorator.
Global class: .MuiButton-startDecorator
Default: 'span'
The component that renders the end decorator.
Global class: .MuiButton-endDecorator
Default: 'span'
These class names are useful for styling with CSS. They are applied to the root slot when specific states are triggered.
State class applied to the ButtonBase root element if the button is keyboard focused.