Number Field

A numeric input element with increment and decrement buttons, and a scrub area.

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldDemo() {
  return (
    <NumberField defaultValue={0}>
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

Installation

npx love-ui@latest add number-field

Usage

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
  NumberFieldScrubArea,
} from "@/components/ui/number-field"

<NumberField defaultValue={0}>
  <NumberFieldScrubArea label="Quantity" />
  <NumberFieldGroup>
    <NumberFieldDecrement />
    <NumberFieldInput />
    <NumberFieldIncrement />
  </NumberFieldGroup>
</NumberField>

Examples

For accessible labelling and validation, prefer using the Field component to wrap number fields. See the related example: Number field.

Small Size

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldSm() {
  return (
    <NumberField size="sm" defaultValue={0}>
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

Large Size

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldLg() {
  return (
    <NumberField size="lg" defaultValue={0}>
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

Disabled

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldDisabled() {
  return (
    <NumberField defaultValue={42} disabled>
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

With External Label

Quantity

import * as React from "react"

import { Label } from "@/components/ui/label"
import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldWithLabel() {
  const id = React.useId()
  return (
    <div className="flex flex-col items-start gap-2">
      <Label htmlFor={id}>Quantity</Label>
      <NumberField id={id} defaultValue={0}>
        <NumberFieldGroup>
          <NumberFieldDecrement />
          <NumberFieldInput />
          <NumberFieldIncrement />
        </NumberFieldGroup>
      </NumberField>
    </div>
  )
}

With Scrub

Quantity

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
  NumberFieldScrubArea,
} from "@/components/ui/number-field"

export default function NumberFieldDemoWithScrub() {
  return (
    <NumberField defaultValue={0}>
      <NumberFieldScrubArea label="Quantity" />
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

With Range

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldWithRange() {
  return (
    <NumberField defaultValue={5} min={0} max={10}>
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

With Formatted Value

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field"

export default function NumberFieldWithFormattedValue() {
  return (
    <NumberField
      defaultValue={0}
      format={{ style: "currency", currency: "USD" }}
    >
      <NumberFieldGroup>
        <NumberFieldDecrement />
        <NumberFieldInput />
        <NumberFieldIncrement />
      </NumberFieldGroup>
    </NumberField>
  )
}

With Step

Step 10

Step 0.1

import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
  NumberFieldScrubArea,
} from "@/components/ui/number-field"

export default function NumberFieldWithStep() {
  return (
    <div className="flex flex-col gap-6">
      <NumberField defaultValue={0} step={10}>
        <NumberFieldScrubArea label="Step 10" />
        <NumberFieldGroup>
          <NumberFieldDecrement />
          <NumberFieldInput />
          <NumberFieldIncrement />
        </NumberFieldGroup>
      </NumberField>
      <NumberField defaultValue={0} step={0.1}>
        <NumberFieldScrubArea label="Step 0.1" />
        <NumberFieldGroup>
          <NumberFieldDecrement />
          <NumberFieldInput />
          <NumberFieldIncrement />
        </NumberFieldGroup>
      </NumberField>
    </div>
  )
}

Form Integration

"use client"

import * as React from "react"
import { z } from "zod"

import { Button } from "@/components/ui/button"
import { Field } from "@/components/ui/field"
import { Form } from "@/components/ui/form"
import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
  NumberFieldScrubArea,
} from "@/components/ui/number-field"

const schema = z.object({
  quantity: z.coerce
    .number({ message: "Please enter a quantity." })
    .min(1, { message: "Quantity must be at least 1." })
    .max(100, { message: "Maximum quantity is 100." }),
})

type Errors = Record<string, string | string[]>

async function submitForm(event: React.FormEvent<HTMLFormElement>) {
  event.preventDefault()

  const formData = new FormData(event.currentTarget)
  const result = schema.safeParse(Object.fromEntries(formData as any))

  if (!result.success) {
    const { fieldErrors } = z.flattenError(result.error)
    return { errors: fieldErrors as Errors }
  }

  return {
    errors: {} as Errors,
    data: result.data,
  }
}

export default function NumberFieldFormDemo() {
  const [loading, setLoading] = React.useState(false)

  const onSubmit = async (event: React.FormEvent<HTMLFormElement>) => {
    setLoading(true)
    const response = await submitForm(event)
    await new Promise((r) => setTimeout(r, 800))
    setLoading(false)
    if (Object.keys(response.errors).length === 0) {
      alert(`Quantity: ${response.data?.quantity}`)
    }
  }

  return (
    <Form onSubmit={onSubmit} className="max-w-64">
      <Field name="quantity">
        <NumberField defaultValue={1} min={1} max={100} disabled={loading}>
          <NumberFieldScrubArea label="Quantity" />
          <NumberFieldGroup>
            <NumberFieldDecrement />
            <NumberFieldInput />
            <NumberFieldIncrement />
          </NumberFieldGroup>
        </NumberField>
      </Field>

      <Button type="submit" disabled={loading}>
        Submit
      </Button>
    </Form>
  )
}

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