JavaScript Element ariaPlaceholder Property

Beginner
5 min read
Updated: Nov 2026
3 examples
Property
Decorative image with the word ARIAPLACEHOLDER

Definition

In JavaScript, ariaPlaceholder reflects the aria-placeholder attribute: a string short hint that aids data entry when a control has no value (MDN).

Read the notes below before you get or set this property. Prefer feature detection when support is limited.

Syntax

Use el.ariaPlaceholder. Start with this line.

JavaScript
element.ariaPlaceholder
CallWhat it does
element.ariaPlaceholderPrimary signature.

Built into the browser. Read or assign el.ariaPlaceholder — no import required.

Library declarations
JavaScript
element.ariaPlaceholder

Parameters

ParameterDescription
ValueOptional. Short string hint
Label / nameRequired. Separate from placeholder
Custom elementsOptional. ElementInternals.ariaPlaceholder

Return Value

Return ValueDescription
*The current value of el.ariaPlaceholder.

JavaScript Examples

Example 1 — Get and Set (MDN)

Read the current hint, then replace it with a sample value string.

JavaScript
let el = document.getElementById("txtBoxInput");
console.log(el.ariaPlaceholder); // "5-digit zip code"
el.ariaPlaceholder = "12345";
console.log(el.ariaPlaceholder); // "12345"
Try It Yourself

How It Works

  1. Select the textbox. It already has aria-placeholder set.
  2. Read ariaPlaceholder. Returns the hint string.
  3. Assign a new string. Updates the reflected attribute.
  4. Read again. Confirms the new short hint.

Example 2 — Textbox with Label + Hint

Set a custom textbox placeholder while keeping a real accessible name.

JavaScript
const box = document.getElementById("dob");
box.setAttribute("role", "textbox");
box.setAttribute("aria-labelledby", "dob-label");
box.ariaPlaceholder = "MM-DD-YYYY";
console.log(box.ariaPlaceholder);
Try It Yourself

How It Works

  1. Set the role. textbox identifies the editable field.
  2. Name it. aria-labelledby points at a visible label.
  3. Set ariaPlaceholder. Short format example when empty.
  4. Keep them separate. Label = meaning; placeholder = sample format.

Example 3 — Property Reflects the Attribute

Show that ariaPlaceholder and aria-placeholder stay in sync.

JavaScript
const el = document.getElementById("txtBoxInput");
el.ariaPlaceholder = "12345";
console.log(el.getAttribute("aria-placeholder")); // "12345"
el.setAttribute("aria-placeholder", "5-digit zip code");
console.log(el.ariaPlaceholder); // "5-digit zip code"
Try It Yourself

How It Works

  1. Write via the property. Attribute updates immediately.
  2. Read via getAttribute. Same string as ariaPlaceholder.
  3. Write via the attribute. Property reflects the change.
  4. Keep hints short. A word or brief phrase (MDN).
Compatibility

Browser Support

Element.ariaPlaceholder is marked Baseline Widely available on MDN (since October 2023). Logos use the shared browser-image-sprite.png sprite from this project.

✓ Baseline · Widely available

Element ariaPlaceholder

Reflects aria-placeholder — a short data-entry hint when empty.

Widely Available
Google Chrome Full support · Desktop & Mobile
Full support
Mozilla Firefox Full support · Desktop & Mobile
Full support
Apple Safari Full support · macOS & iOS
Full support
Microsoft Edge Full support · Chromium
Full support
Opera Full support · Modern versions
Full support
Internet Explorer No Element.ariaPlaceholder
Not supported
ariaPlaceholder Baseline support

Bottom line: Safe in modern browsers. Prefer native placeholder on input/textarea; use ariaPlaceholder on custom role=textbox widgets with a real label. See the MDN Element.ariaPlaceholder reference.

Frequently Asked Questions

It reflects the aria-placeholder attribute as a string — a short hint to aid data entry when the control has no value.
No. MDN marks Element.ariaPlaceholder as Baseline Widely available (since October 2023). It is not Deprecated, Experimental, or Non-standard.
No when you can avoid it. MDN recommends using an HTML element such as input type=text or textarea, which have built-in placeholder semantics and do not require ARIA attributes.
No. A placeholder is a temporary hint shown when the field is empty. Always provide a real accessible name with a label element, aria-labelledby, or ariaLabel — do not rely on placeholder alone.
MDN sets aria-placeholder="5-digit zip code" on a role="textbox" contenteditable div, reads that string via ariaPlaceholder, then assigns "12345".
Yes. Reading and writing ariaPlaceholder updates the reflected aria-placeholder attribute. Keep any visible placeholder UI in sync if you draw it yourself.

Next: Element ariaPosInSet

Learn how items expose their position within a set to assistive technology.

ariaPosInSet tutorial →

About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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