WAI-ARIA: aria-required (Property)

Description

Indicates that user input is required on the element before a form may be submitted.

For example, if the user needs to fill in an address field, the author will need to set the field’s aria-required attribute to true.

Note: The fact that the element is required is often presented visually (such as a sign or symbol after the widget). Using the aria-required attribute allows the author to explicitly convey to assistive technologies that an element is required.

Unless an exactly equivalent native attribute is available, host languages SHOULD allow authors to use the aria-required attribute on host language form elements that require input or selection by the user.

Browser Compatibility

Screen Reader Support

aria-required Example

HTML Example

<div class="text">
  <label id="tp1-label" for="first">First Name:</label> <input type="text" id="first" name="first" size="20" aria-labelledby="tp1-label" aria-describedby="tp1" aria-required="false">
  <div id="tp1" class="tooltip" role="tooltip" aria-hidden="true">
    Your first name is optional
  </div>
</div>

Characteristics

Related Concepts

• HTML required

Used in Roles

• combobox
• gridcell
• listbox
• radiogroup
• spinbutton
• textbox
• tree

Inherits into Roles

• columnheader
• rowheader
• searchbox
• treegrid

Value

•  True/False
  Value representing either true or false. The default value for this value type is False, unless otherwise specified.
• False (default)
  • User input is not necessary to submit the form.
• True:
  • Users need to provide input on an element before a form is submitted.

Semantic HTML

Use the HTML “required” attribute.

<input type=”text” required>
—-
<select required>
<option value="">None</option>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>

Reference

• WAI-ARIA 1.2 Specification
  Refer to the notes from the WAI-ARIA 1.2 specification for more information on aria-required.
• A11Y Support
  The screenreader compatibility for each of the ARIA attributes is taken from the A11Y Support. Please refer to the original source if screenreader compatibility is updated for aria-required.
• MDN Web Docs
  The browser compatibility for each of the ARIA attributes is taken from the MDN Web Docs. Please refer to the original source if browser compatibility is updated for aria-required.