HTMLInputElement: alt property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The alt
property of the HTMLInputElement
interface defines the textual label for the button for users and user agents who cannot use the image. It reflects the <input>
element's alt
attribute.
The alt
property is valid for the image
type only. It should be a non-empty string giving the label that would be appropriate for an equivalent button if the image was unavailable.
Value
A string.
Examples
js
const inputElement = document.getElementById("imageButton");
console.log(inputElement.alt);
inputElement.alt = "A much better description";
Specifications
Specification |
---|
HTML # dom-input-alt |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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alt |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
See also
HTMLImageElement.alt
HTMLButtonElement
<button>
<input>
<img>
- Good alt text, bad alt text — Making your content perceivable on WCAG.com (2021)
- An alt Decision Tree on W3C Web Accessibility Initiative (WAI)