Files
payload/docs/fields/number.mdx
Alessio Gravili 9f9db3ff81 chore: bump prettier, re-enable prettier for docs (#11695)
## Introducing Prettier for docs

Prettier [was originally disabled for our docs as it didn't support MDX
2.0](1fa636417f),
outputting invalid MDX syntax.

This has since been fixed - prettier now supports MDX 2.0.

## Reducing print width

This also reduces the print width for the docs folder from 100 to 70.
Our docs code field are very narrow - this should help make code more
readable.

**Before**
![CleanShot 2025-03-13 at 19 58
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**After**

![CleanShot 2025-03-13 at 19 59
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**Before**
![CleanShot 2025-03-13 at 20 00
05@2x](https://github.com/user-attachments/assets/614e51b3-aa0d-45e7-98f4-fcdb1a778bcf)

**After**

![CleanShot 2025-03-13 at 20 00
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2025-03-14 17:13:08 +00:00

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---
title: Number Field
label: Number
order: 100
desc: Number fields store and validate numeric data. Learn how to use and format Number fields, see examples and Number field options.
keywords: number, fields, config, configuration, documentation, Content Management System, cms, headless, javascript, node, react, nextjs
---
The Number Field stores and validates numeric entry and supports additional numerical validation and formatting features.
<LightDarkImage
srcLight="https://payloadcms.com/images/docs/fields/number.png"
srcDark="https://payloadcms.com/images/docs/fields/number-dark.png"
alt="Shows a Number field in the Payload Admin Panel"
caption="Admin Panel screenshot of a Number field"
/>
To add a Number Field, set the `type` to `number` in your [Field Config](./overview):
```ts
import type { Field } from 'payload'
export const MyNumberField: Field = {
// ...
type: 'number', // highlight-line
}
```
## Config Options
| Option | Description |
| ---------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **`name`** \* | To be used as the property name when stored and retrieved from the database. [More](/docs/fields/overview#field-names) |
| **`label`** | Text used as a field label in the Admin Panel or an object with keys for each language. |
| **`min`** | Minimum value accepted. Used in the default `validation` function. |
| **`max`** | Maximum value accepted. Used in the default `validation` function. |
| **`hasMany`** | Makes this field an ordered array of numbers instead of just a single number. |
| **`minRows`** | Minimum number of numbers in the numbers array, if `hasMany` is set to true. |
| **`maxRows`** | Maximum number of numbers in the numbers array, if `hasMany` is set to true. |
| **`unique`** | Enforce that each entry in the Collection has a unique value for this field. |
| **`index`** | Build an [index](/docs/database/overview) for this field to produce faster queries. Set this field to `true` if your users will perform queries on this field's data often. |
| **`validate`** | Provide a custom validation function that will be executed on both the Admin Panel and the backend. [More](/docs/fields/overview#validation) |
| **`saveToJWT`** | If this field is top-level and nested in a config supporting [Authentication](/docs/authentication/overview), include its data in the user JWT. |
| **`hooks`** | Provide Field Hooks to control logic for this field. [More details](../hooks/fields). |
| **`access`** | Provide Field Access Control to denote what users can see and do with this field's data. [More details](../access-control/fields). |
| **`hidden`** | Restrict this field's visibility from all APIs entirely. Will still be saved to the database, but will not appear in any API or the Admin Panel. |
| **`defaultValue`** | Provide data to be used for this field's default value. [More](/docs/fields/overview#default-values) |
| **`localized`** | Enable localization for this field. Requires [localization to be enabled](/docs/configuration/localization) in the Base config. |
| **`required`** | Require this field to have a value. |
| **`admin`** | Admin-specific configuration. [More details](#admin-options). |
| **`custom`** | Extension point for adding custom data (e.g. for plugins) |
| **`typescriptSchema`** | Override field type generation with providing a JSON schema |
| **`virtual`** | Provide `true` to disable field in the database. See [Virtual Fields](https://payloadcms.com/blog/learn-how-virtual-fields-can-help-solve-common-cms-challenges) |
_\* An asterisk denotes that a property is required._
## Admin Options
To customize the appearance and behavior of the Number Field in the [Admin Panel](../admin/overview), you can use the `admin` option:
```ts
import type { Field } from 'payload'
export const MyNumberField: Field = {
// ...
admin: {
// highlight-line
// ...
},
}
```
The Number Field inherits all of the default options from the base [Field Admin Config](./overview#admin-options), plus the following additional options:
| Property | Description |
| ------------------ | --------------------------------------------------------------------------------- |
| **`step`** | Set a value for the number field to increment / decrement using browser controls. |
| **`placeholder`** | Set this property to define a placeholder string for the field. |
| **`autoComplete`** | Set this property to a string that will be used for browser autocomplete. |
## Example
`collections/ExampleCollection.ts`
```ts
import type { CollectionConfig } from 'payload'
export const ExampleCollection: CollectionConfig = {
slug: 'example-collection',
fields: [
{
name: 'age', // required
type: 'number', // required
required: true,
admin: {
step: 1,
},
},
],
}
```
## Custom Components
### Field
#### Server Component
```tsx
import type React from 'react'
import { NumberField } from '@payloadcms/ui'
import type { NumberFieldServerComponent } from 'payload'
export const CustomNumberFieldServer: NumberFieldServerComponent = ({
clientField,
path,
schemaPath,
permissions,
}) => {
return (
<NumberField
field={clientField}
path={path}
schemaPath={schemaPath}
permissions={permissions}
/>
)
}
```
#### Client Component
```tsx
'use client'
import React from 'react'
import { NumberField } from '@payloadcms/ui'
import type { NumberFieldClientComponent } from 'payload'
export const CustomNumberFieldClient: NumberFieldClientComponent = (props) => {
return <NumberField {...props} />
}
```
### Label
#### Server Component
```tsx
import React from 'react'
import { FieldLabel } from '@payloadcms/ui'
import type { NumberFieldLabelServerComponent } from 'payload'
export const CustomNumberFieldLabelServer: NumberFieldLabelServerComponent = ({
clientField,
path,
}) => {
return (
<FieldLabel
label={clientField?.label || clientField?.name}
path={path}
required={clientField?.required}
/>
)
}
```
#### Client Component
```tsx
'use client'
import React from 'react'
import { FieldLabel } from '@payloadcms/ui'
import type { NumberFieldLabelClientComponent } from 'payload'
export const CustomNumberFieldLabelClient: NumberFieldLabelClientComponent = ({
field,
path,
}) => {
return (
<FieldLabel
label={field?.label || field?.name}
path={path}
required={field?.required}
/>
)
}
```