NumberInput

The NumberInput component is similar to the Input, but it has controls for incrementing or decrementing numeric values.

It follows the WAI-ARIA authoring practices for the Spinbutton widget.

Import#

Chakra UI exports 5 components for the NumberInput.

NumberInput: The wrapper that provides context and logic to the components.
NumberInputField: The input field itself.
NumberInputStepper: The wrapper for the input's stepper buttons.
NumberIncrementStepper: The button to increment the value of the input.
NumberDecrementStepper: The button to decrement the value of the input.

import {
  NumberInput,
  NumberInputField,
  NumberInputStepper,
  NumberIncrementStepper,
  NumberDecrementStepper,
} from "@chakra-ui/core";

import {
  NumberInput,
  NumberInputField,
  NumberInputStepper,
  NumberIncrementStepper,
  NumberDecrementStepper,
} from "@chakra-ui/core";

Usage#

The NumberInput is composed of smaller components to give you control of the styling of each part.

<NumberInput>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Setting a minimum and maximum value#

Simply pass the min prop or max prop to set an upper and lower limit for the input. By default, the input will restrict the value to stay within the specified range.

<NumberInput defaultValue={15} min={10} max={20}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput defaultValue={15} min={10} max={20}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Setting the step size#

Simply pass the step prop to change the step size when you increment or decrement the value. By default, the value is rounded to match the number of decimals in the step.

<NumberInput step={5} defaultValue={15} min={10} max={30}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput step={5} defaultValue={15} min={10} max={30}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Adjusting the precision of the value#

In some cases, you might need the value to be rounded to specific decimal points. Simply pass the precision prop and set it to the number of decimal points.

<NumberInput defaultValue={15} precision={2} step={0.2}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput defaultValue={15} precision={2} step={0.2}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Showing the numeric keyboard on mobile#

By default the NumericInputField is of type text, hence displaying a full keyboard on mobile devices. If you want to display a numeric keyboard, add type="number" to the NumberInputField input, like so:

🚨 We don't recommend you use this component for mobile considering that it might be difficult for mobile users to tap on the steppers. We'll release a mobile specific implementation soon.

<NumberInput defaultValue={15} precision={2} step={0.2}>
  <NumberInputField type="number" /> {/* <-- "type" here */}
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput defaultValue={15} precision={2} step={0.2}>
  <NumberInputField type="number" /> {/* <-- "type" here */}
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Clamp value when user blurs the input#

In most cases, users can type custom values in the input field. If the typed value is greater than the max, the value is reset to max when the user blur out of the input.

To disable this behavior, pass clampValueOnBlur and set to false.

In this example, try to type a value greater than the max, it won't reset the value on blur.

<NumberInput defaultValue={15} max={30} clampValueOnBlur={false}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput defaultValue={15} max={30} clampValueOnBlur={false}>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Allowing out of range values#

In some scenarios, you might not want to block out of range values. Simple pass keepWithinRange and clampValueOnBlur and set them to false to support this use case.

The NumberInput will be set isInvalid to true internally when the value is out of range. Out of range means that the value is great than max or less than min.

<NumberInput
  defaultValue={15}
  max={10}
  keepWithinRange={false}
  clampValueOnBlur={false}
>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

<NumberInput
  defaultValue={15}
  max={10}
  keepWithinRange={false}
  clampValueOnBlur={false}
>
  <NumberInputField />
  <NumberInputStepper>
    <NumberIncrementStepper />
    <NumberDecrementStepper />
  </NumberInputStepper>
</NumberInput>

Editable Example

Changing the size of the input#

Just like the Input component, you can pass the size prop to change the size of the input.

<Stack shouldWrapChildren isInline>
  <NumberInput size="sm" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>

  <NumberInput size="md" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>

  <NumberInput size="lg" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>
</Stack>

<Stack shouldWrapChildren isInline>
  <NumberInput size="sm" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>
  <NumberInput size="md" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>
  <NumberInput size="lg" defaultValue={15} min={10}>
    <NumberInputField />
    <NumberInputStepper>
      <NumberIncrementStepper />
      <NumberDecrementStepper />
    </NumberInputStepper>
  </NumberInput>
</Stack>

Editable Example

Changing the styles#

You can change the style of any part of the components using style props. You can also change the icons used in the steppers

<NumberInput size="sm" defaultValue={15} min={10}>
  <NumberInputField focusBorderColor="red.200" />
  <NumberInputStepper>
    <NumberIncrementStepper
      bg="green.200"
      _active={{ bg: "green.300" }}
      children="+"
    />
    <NumberDecrementStepper
      bg="pink.200"
      _active={{ bg: "pink.300" }}
      children="-"
    />
  </NumberInputStepper>
</NumberInput>

<NumberInput size="sm" defaultValue={15} min={10}>
  <NumberInputField focusBorderColor="red.200" />
  <NumberInputStepper>
    <NumberIncrementStepper
      bg="green.200"
      _active={{ bg: "green.300" }}
      children="+"
    />
    <NumberDecrementStepper
      bg="pink.200"
      _active={{ bg: "pink.300" }}
      children="-"
    />
  </NumberInputStepper>
</NumberInput>

Editable Example

Combining it with a Slider#

A common use case is to combine the NumberInput with a Slider. Here's an example of how to do that.

function SliderInput() {
  const [value, setValue] = React.useState(0);
  const handleChange = value => setValue(value);

  return (
    <Flex>
      <NumberInput
        maxW="100px"
        mr="2rem"
        value={value}
        onChange={handleChange}
      />
      <Slider flex="1" value={value} onChange={handleChange}>
        <SliderTrack />
        <SliderFilledTrack />
        <SliderThumb
          fontSize="sm"
          width="32px"
          height="20px"
          children={value}
        />
      </Slider>
    </Flex>
  );
}

function SliderInput() {
  const [value, setValue] = React.useState(0);
  const handleChange = value => setValue(value);
  return (
    <Flex>
      <NumberInput
        maxW="100px"
        mr="2rem"
        value={value}
        onChange={handleChange}
      />
      <Slider flex="1" value={value} onChange={handleChange}>
        <SliderTrack />
        <SliderFilledTrack />
        <SliderThumb
          fontSize="sm"
          width="32px"
          height="20px"
          children={value}
        />
      </Slider>
    </Flex>
  );
}

Editable Example

Accessibility#

Aria Roles#

The input has role set to spinbutton to denote that users are to select from a range of discrete values using an up and down arrows on the keyboard.
The input as aria-valuemin set to the minimum value allowed for the spinbutton.
The input as aria-valuemax set to the maximum value allowed for the spinbutton. attribute should be applied to the spinbutton.
The input as aria-valuenow set to the current value of the input.
The custom spinner (up and down buttons) havearia-hidden set to true to make them invisible to screen readers.

When you hit the ⬆ or ⬇ key, the input value will be increased or decreased by step
Holding down Shift and pressing ⬆ or ⬇ will update the value by 10 * step
Holding down Ctrl or ⌘, and pressing ⬆ or ⬆ will update the value by `0.1 * step`
Long press the Up and down stepper buttons will update the value at intervals.

Props#

NumberInput Props#

NumberInput composes Flex with some additional props listed below.

Name	Type	Default	Description
`value`	`number`		The value of the input for controlled usage. Should be less than `max` and greater than `min`
`defaultValue`	`number`		The initial value of the input. Should be less than `max` and greater than `min`
`onChange`	`(value: number) => void`		The callback fired when the value changes
`min`	`number`	`-Infinity`	The maximum value of the input
`max`	`number`	`Infinity`	The minimum value of the input
`step`	`number`	`1`	The step used to increment or decrement the value
`precision`	`number`		The number of decimal points used to round the value
`isReadOnly`	`boolean`		If `true`, the input will be in readonly mode
`isInvalid`	`boolean`		If `true`, the input will have `aria-invalid` set to `true`
`isDisabled`	`boolean`		If `true`, the input will be disabled
`keepWithinRange`	`boolean`	`true`	If `true` and you use the stepper or up/down arrow keys, the value will not exceed the `max` or go lower than `min`
`clampValueOnBlur`	`boolean`	`true`	If `true` and the value is greater than `max`, the value will be reset to `max`
`focusInputOnChange`	`boolean`	`true`	If `true`, the input will be focused as you increment or decrement the value with the stepper
`getAriaValueText`	`(value: number) => string`	`true`	It is used to set the `aria-valuetext` property of the input

NumberInputField Props#

NumberInput composes Input so you can pass all Input props.

NumberInputStepper Props#

NumberInputStepper composes Flex so you can pass all Flex props.

NumberDecrementStepper and NumberIncrementStepper Props#

NumberDecrementStepper and NumberIncrementStepper composes the PseudoBox props so you can pass all PseudoBox props.

Proudly made in 🇳🇬

Released under the MIT License.

NumberInput

.css-12m0k8p{pointer-events:auto;}Import.css-18hqai{color:#319795;font-weight:400;outline:none;opacity:0;margin-left:0.375rem;}.css-18hqai:focus{opacity:1;box-shadow:0 0 0 3px rgba(66,153,225,0.6);}#

Usage#

Setting a minimum and maximum value#

Setting the step size#

Adjusting the precision of the value#

Showing the numeric keyboard on mobile#

Clamp value when user blurs the input#

Allowing out of range values#

Changing the size of the input#

Changing the styles#

Combining it with a Slider#

Accessibility#

Aria Roles#

Keyboard Navigation#

Props#

NumberInput Props#

NumberInputField Props#

NumberInputStepper Props#

NumberDecrementStepper and NumberIncrementStepper Props#

Import#