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Number input

Number Input

A field that allows user input of numeric values.

You can explore the number-input component in the following curated examples.

Slider with Number Input

Render a Slider with a Tooltip that shows the current value of the Slider.

Anatomy

To set up the number input correctly, you'll need to understand its anatomy and how we name its parts.

Each part includes a data-part attribute to help identify them in the DOM.

Examples

Learn how to use the NumberInput component in your project. Let's take a look at the most basic example:

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root>
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Setting a minimum and maximum value

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.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root :min="0" :max="10">
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Adjusting the precision of the value

In some cases, you might need the value to be rounded to specific decimal points. Set the formatOptions and provide Intl.NumberFormatOptions such as maximumFractionDigits or minimumFractionDigits.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root
    :formatOptions="{ minimumFractionDigits: 2, maximumFractionDigits: 3 }"
    model-value="1.00"
  >
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Scrubbing the input value

The NumberInput supports the scrubber interaction pattern. To use this pattern, render the NumberInput.Scrubber component. It uses the Pointer lock API and tracks the pointer movement. It also renders a virtual cursor which mimics the real cursor's pointer.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root>
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Using the mouse wheel to change value

The NumberInput exposes a way to increment/decrement the value using the mouse wheel event. To activate this, set the allowMouseWheel prop to true.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root allowMouseWheel>
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

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.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root :clampValueOnBlur="false">
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Usage within forms

To use the number input within forms, set the name prop.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root name="quantity">
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Format and parse value

To apply custom formatting to the input's value, set the formatOptions and provide Intl.NumberFormatOptions such as style and currency.

<script setup lang="ts">
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <NumberInput.Root :formatOptions="{ style: 'currency', currency: 'USD' }">
    <NumberInput.Scrubber />
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.Root>
</template>

Using the Field Component

The Field component helps manage form-related state and accessibility attributes of a number input. It includes handling ARIA labels, helper text, and error text to ensure proper accessibility.

<script setup lang="ts">
import { Field } from '@ark-ui/vue/field'
import { NumberInput } from '@ark-ui/vue/number-input'
</script>

<template>
  <Field.Root>
    <NumberInput.Root>
      <NumberInput.Label>Label</NumberInput.Label>
      <NumberInput.Input />
      <NumberInput.Control>
        <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
        <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
      </NumberInput.Control>
    </NumberInput.Root>
    <Field.HelperText>Additional Info</Field.HelperText>
    <Field.ErrorText>Error Info</Field.ErrorText>
  </Field.Root>
</template>

Using the Root Provider

The RootProvider component provides a context for the number-input. It accepts the value of the useNumber-input hook. You can leverage it to access the component state and methods from outside the number-input.

<script setup lang="ts">
import { NumberInput, useNumberInput } from '@ark-ui/vue/number-input'

const numberInput = useNumberInput()
</script>

<template>
  <button @click="numberInput.focus()">Focus</button>

  <NumberInput.RootProvider :value="numberInput">
    <NumberInput.Label>Label</NumberInput.Label>
    <NumberInput.Input />
    <NumberInput.Control>
      <NumberInput.DecrementTrigger>-1</NumberInput.DecrementTrigger>
      <NumberInput.IncrementTrigger>+1</NumberInput.IncrementTrigger>
    </NumberInput.Control>
  </NumberInput.RootProvider>
</template>

If you're using the RootProvider component, you don't need to use the Root component.

API Reference

Root

PropDefaultType
allowMouseWheel
boolean

Whether to allow mouse wheel to change the value

allowOverflowtrue
boolean

Whether to allow the value overflow the min/max range

asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
clampValueOnBlurtrue
boolean

Whether to clamp the value when the input loses focus (blur)

defaultValue
string

The initial value of the number input when it is first rendered. Use when you do not need to control the state of the number input.

disabled
boolean

Whether the number input is disabled.

focusInputOnChangetrue
boolean

Whether to focus input when the value changes

form
string

The associate form of the input element.

formatOptions
NumberFormatOptions

The options to pass to the `Intl.NumberFormat` constructor

id
string

The unique identifier of the machine.

ids
Partial<{ root: string label: string input: string incrementTrigger: string decrementTrigger: string scrubber: string }>

The ids of the elements in the number input. Useful for composition.

inputMode'decimal'
'text' | 'tel' | 'numeric' | 'decimal'

Hints at the type of data that might be entered by the user. It also determines the type of keyboard shown to the user on mobile devices

invalid
boolean

Whether the number input value is invalid.

locale'en-US'
string

The current locale. Based on the BCP 47 definition.

maxNumber.MAX_SAFE_INTEGER
number

The maximum value of the number input

minNumber.MIN_SAFE_INTEGER
number

The minimum value of the number input

modelValue
string

name
string

The name attribute of the number input. Useful for form submission.

pattern'[0-9]*(.[0-9]+)?'
string

The pattern used to check the <input> element's value against

readOnly
boolean

Whether the number input is readonly

required
boolean

Whether the number input is required

spinOnPresstrue
boolean

Whether to spin the value when the increment/decrement button is pressed

step1
number

The amount to increment or decrement the value by

translations
IntlTranslations

Specifies the localized strings that identifies the accessibility elements and their states

EmitEvent
focusChange
[details: FocusChangeDetails]

Function invoked when the number input is focused

update:modelValue
[value: string]

The callback fired when the model value changes.

valueChange
[details: ValueChangeDetails]

Function invoked when the value changes

valueInvalid
[details: ValueInvalidDetails]

Function invoked when the value overflows or underflows the min/max range

Data AttributeValue
[data-scope]number-input
[data-part]root
[data-disabled]Present when disabled
[data-focus]Present when focused
[data-invalid]Present when invalid

Control

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]control
[data-focus]Present when focused
[data-disabled]Present when disabled
[data-invalid]Present when invalid

DecrementTrigger

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]decrement-trigger
[data-disabled]Present when disabled

IncrementTrigger

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]increment-trigger
[data-disabled]Present when disabled

Input

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]input
[data-invalid]Present when invalid
[data-disabled]Present when disabled

Label

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]label
[data-disabled]Present when disabled
[data-focus]Present when focused
[data-invalid]Present when invalid

RootProvider

PropDefaultType
value
MachineApi<PropTypes>

asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.

Scrubber

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]scrubber
[data-disabled]Present when disabled

ValueText

PropDefaultType
asChild
boolean

Use the provided child element as the default rendered element, combining their props and behavior.

For more details, read our Composition guide.
Data AttributeValue
[data-scope]number-input
[data-part]value-text
[data-disabled]Present when disabled
[data-invalid]Present when invalid
[data-focus]Present when focused

Accessibility

Complies with the Spinbutton WAI-ARIA design pattern.

Keyboard Support

KeyDescription
ArrowUp
Increments the value of the number input by a predefined step.
ArrowDown
Decrements the value of the number input by a predefined step.
PageUp
Increments the value of the number input by a larger predefined step.
PageDown
Decrements the value of the number input by a larger predefined step.
Home
Sets the value of the number input to its minimum allowed value.
End
Sets the value of the number input to its maximum allowed value.
Enter
Submits the value entered in the number input.

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