Return the alternate text of an image:
The result of x will be:
The alt property sets or returns the value of the alt attribute of an image.
The required alt attribute specifies an alternate text for an image, if the image for some reason cannot be displayed (because of slow connection, an error in the src attribute, or if the user uses a screen reader).
Note: Internet Explorer displays the value of the alt attribute as a tooltip when mousing over the <img> element. This is NOT the correct behavior, according to the HTML specification. All other browsers are following the specification, and will only display the alt text if the image cannot be displayed.
Tip: If you want to create a tooltip for an image, use the global title attribute.
The alt property is supported in all major browsers.
Return the alt property:
Set the alt property:
Value | Description |
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text |
Specifies an alternate text for an image. Guidelines for the alt text:
|
Return Value: | A String, representing the alternate text of the image |
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Change the alternate text of an image:
HTML reference: HTML <img> alt attribute