htmlTextarea: Textarea component

In dash: An Interface to the Dash Ecosystem for Authoring Reactive Web Applications

Textarea component

Description

Textarea is a wrapper for the <textarea> HTML5 element. For detailed attribute info see: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/textarea

Usage

htmlTextarea(children=NULL, id=NULL, n_clicks=NULL,
n_clicks_timestamp=NULL, key=NULL, role=NULL,
autoComplete=NULL, autoFocus=NULL, cols=NULL, disabled=NULL,
form=NULL, inputMode=NULL, maxLength=NULL, minLength=NULL,
name=NULL, placeholder=NULL, readOnly=NULL, required=NULL,
rows=NULL, wrap=NULL, accessKey=NULL, className=NULL,
contentEditable=NULL, contextMenu=NULL, dir=NULL,
draggable=NULL, hidden=NULL, lang=NULL, spellCheck=NULL,
style=NULL, tabIndex=NULL, title=NULL, loading_state=NULL,
...)

Arguments

children	A list of or a singular dash component, string or number. The children of this component
id	Character. The ID of this component, used to identify dash components in callbacks. The ID needs to be unique across all of the components in an app.
n_clicks	Numeric. An integer that represents the number of times that this element has been clicked on.
n_clicks_timestamp	Numeric. An integer that represents the time (in ms since 1970) at which n_clicks changed. This can be used to tell which button was changed most recently.
key	Character. A unique identifier for the component, used to improve performance by React.js while rendering components See https://reactjs.org/docs/lists-and-keys.html for more info
role	Character. The ARIA role attribute
autoComplete	Character. Indicates whether controls in this form can by default have their values automatically completed by the browser.
autoFocus	A value equal to: 'autofocus', 'autofocus', 'autofocus' | logical. The element should be automatically focused after the page loaded.
cols	Character | numeric. Defines the number of columns in a textarea.
disabled	A value equal to: 'disabled', 'disabled' | logical. Indicates whether the user can interact with the element.
form	Character. Indicates the form that is the owner of the element.
inputMode	Character. Provides a hint as to the type of data that might be entered by the user while editing the element or its contents. The attribute can be used with form controls (such as the value of textarea elements), or in elements in an editing host (e.g., using contenteditable attribute).
maxLength	Character | numeric. Defines the maximum number of characters allowed in the element.
minLength	Character | numeric. Defines the minimum number of characters allowed in the element.
name	Character. Name of the element. For example used by the server to identify the fields in form submits.
placeholder	Character. Provides a hint to the user of what can be entered in the field.
readOnly	Character. Indicates whether the element can be edited.
required	A value equal to: 'required', 'required' | logical. Indicates whether this element is required to fill out or not.
rows	Character | numeric. Defines the number of rows in a text area.
wrap	Character. Indicates whether the text should be wrapped.
accessKey	Character. Keyboard shortcut to activate or add focus to the element.
className	Character. Often used with CSS to style elements with common properties.
contentEditable	Character. Indicates whether the element's content is editable.
contextMenu	Character. Defines the ID of a <menu> element which will serve as the element's context menu.
dir	Character. Defines the text direction. Allowed values are ltr (Left-To-Right) or rtl (Right-To-Left)
draggable	Character. Defines whether the element can be dragged.
hidden	A value equal to: 'hidden', 'hidden' | logical. Prevents rendering of given element, while keeping child elements, e.g. script elements, active.
lang	Character. Defines the language used in the element.
spellCheck	Character. Indicates whether spell checking is allowed for the element.
style	Named list. Defines CSS styles which will override styles previously set.
tabIndex	Character. Overrides the browser's default tab order and follows the one specified instead.
title	Character. Text to be displayed in a tooltip when hovering over the element.
loading_state	Lists containing elements 'is_loading', 'prop_name', 'component_name'. those elements have the following types: - is_loading (logical; optional): determines if the component is loading or not - prop_name (character; optional): holds which property is loading - component_name (character; optional): holds the name of the component that is loading. Object that holds the loading state object coming from dash-renderer
...	wildcards allowed have the form: ''data-*', 'aria-*''

Value

named list of JSON elements corresponding to React.js properties and their values

Examples

if (interactive()) {
  library(dash)

  app <- Dash$new()

  app$layout(
    htmlDiv(list(
      htmlTextarea(
        rows = 4, cols = 50,
        children = "A text area allows users to input text"
      )
      )
    )
  )

  app$run_server()
}

dash documentation built on June 23, 2022, 9:11 a.m.