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[slider] Accept readonly array for the value prop (@pcorpet) #47961

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Merged
ZeeshanTamboli merged 2 commits into from
Mar 13, 2026
+20 −4
Merged

[slider] Accept readonly array for the value prop (@pcorpet) #47961

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1e8d1d3
[slider] Accept readonly array for the value prop (#47936)
pcorpet Mar 13, 2026
f753048
rerun CI
ZeeshanTamboli Mar 13, 2026
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10 changes: 6 additions & 4 deletions packages/mui-material/src/Slider/Slider.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ export interface SliderOwnerState extends SliderProps {
focusedThumbIndex: number;
}

export interface SliderOwnProps<Value extends number | number[]> {
export interface SliderOwnProps<Value extends number | readonly number[]> {
/**
* The label of the slider.
*/
Expand Down Expand Up @@ -317,18 +317,19 @@ export interface SliderOwnProps<Value extends number | number[]> {
export interface SliderTypeMap<
RootComponent extends React.ElementType = 'span',
AdditionalProps = {},
Value extends number | number[] = number | number[],
Value extends number | readonly number[] = number | number[],
> {
props: AdditionalProps & SliderOwnProps<Value>;
defaultComponent: RootComponent;
}

export type SliderComponent<Value extends number | number[]> = OverridableComponent<
export type SliderComponent<Value extends number | readonly number[]> = OverridableComponent<
SliderTypeMap<'span', {}, Value>
>;

export type SliderType = SliderComponent<number> &
SliderComponent<number[]> &
SliderComponent<readonly number[]> &
SliderComponent<number | number[]>;

export interface SliderValueLabelProps extends React.HTMLAttributes<HTMLSpanElement> {
Expand Down Expand Up @@ -368,7 +369,8 @@ declare const Slider: SliderType;
export type SliderProps<
RootComponent extends React.ElementType = SliderTypeMap['defaultComponent'],
AdditionalProps = {},
> = OverrideProps<SliderTypeMap<RootComponent, AdditionalProps>, RootComponent> & {
Value extends number | readonly number[] = number | number[],
> = OverrideProps<SliderTypeMap<RootComponent, AdditionalProps, Value>, RootComponent> & {
component?: React.ElementType | undefined;
};

Expand Down
14 changes: 14 additions & 0 deletions packages/mui-material/src/Slider/Slider.spec.tsx
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import * as React from 'react';
import Slider from '@mui/material/Slider';
import type { SliderProps } from '@mui/material/Slider';

function testOnChange() {
function handleSliderChange(event: Event, value: unknown) {}
Expand Down Expand Up @@ -82,6 +83,19 @@ function testOnChange() {
onChange={(event, value: number[]) => {}}
onChangeCommitted={(event, value: number[]) => {}}
/>;
const values = [5, 10] as const;
<Slider
value={values}
onChange={(event, value: readonly number[]) => {}}
onChangeCommitted={(event, value: readonly number[]) => {}}
/>;

const sliderProps: SliderProps<'span', {}, readonly number[]> = {
value: values,
onChange: (event, value: readonly number[]) => {},
onChangeCommitted: (event, value: readonly number[]) => {},
};
<Slider {...sliderProps} />;

const CustomComponent: React.FC<{ stringProp: string; numberProp: number }> =
function CustomComponent() {
Expand Down
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