# Numeric Input Examples and Reference

# Default Numeric Input

An example of a default numeric input without any extra properties.

    library(dash)
    library(dashDaq)
    library(dashHtmlComponents)

    app <- Dash$new()

    app$layout(htmlDiv(list(
      daqNumericInput(id = 'my-numeric-input',
                      value = 0),
      htmlDiv(id = 'numeric-input-output')
    )))

    app$callback(
      output(id = "numeric-input-output", property = "children"),
      params = list(input(id = "my-numeric-input", property = "value")),

      update_output <- function(value) {
        return(sprintf("The value is %s", value))
      }
    )

    app$run_server()

The value is 0.

### Label

Set the label and label position with `label` and `labelPosition`.

    library(dashDaq)

    daqNumericInput(
        label = 'Label',
        labelPosition = 'bottom',
        value = 10
    )

Label

### Size

Extend the size with `size`.

    library(dashDaq)

    daqNumericInput(
        value = 10,
        size = 120
    )

### Max and Min

Set the minimum and maximum bounds with `min` and `max`.

    library(dashDaq)

    daqNumericInput(
        min = 0,
        max = 100,
        value = 20
    )

### Disable

Disable the numeric input by setting `disabled=TRUE`

    library(dashDaq)

    daq.NumericInput(
        disabled = True,
        min = 0,
        max = 10,
        value = 2
    )

## NumericInput Properties

> Our recommended IDE for writing Dash apps is Dash Enterprise's Data Science Workspaces, which has typeahead support for Dash Component Properties. Find out if your company is using Dash Enterprise.

`id` (character; optional): The ID used to identify this compnent in Dash callbacks.

`value` (numeric; optional): The value of numeric input.

`size` (numeric; optional): The size (length) of the numeric input in pixels.

`min` (numeric; default `0`): The minimum value of the numeric input.

`max` (numeric; default `10`): The maximum value of the numeric input.

`disabled` (logical; optional): If TRUE, numeric input cannot changed.

`theme` (named list; default `light`): Theme configuration to be set by a ThemeProvider.

`label` (named list; optional): Description to be displayed alongside the control. To control styling, pass an object with label and style properties.

`label` is a character | named list with keys:

- `label` (character; optional)

- `style` (named list; optional)

`labelPosition` (a value equal to: 'top' or 'bottom'; default `'top'`): Where the numeric input label is positioned.

`className` (character; optional): Class to apply to the root component element.

`style` (named list; default `{ display: 'flex', justifyContent: 'center' }`): Style to apply to the root component element.

`persistence` (logical | character | numeric; optional): Used to allow user interactions in this component to be persisted when the component - or the page - is refreshed. If `persisted` is truthy and hasn't changed from its previous value, a `value` that the user has changed while using the app will keep that change, as long as the new `value` also matches what was given originally. Used in conjunction with `persistence_type`.

`persisted_props` (unnamed list of values equal to: 'value'; default `['value']`): Properties whose user interactions will persist after refreshing the component or the page. Since only `value` is allowed this prop can normally be ignored.

`persistence_type` (a value equal to: 'local', 'session' or 'memory'; default `'local'`): Where persisted user changes will be stored: memory: only kept in memory, reset on page refresh. local: window.localStorage, data is kept after the browser quit. session: window.sessionStorage, data is cleared once the browser quit.