Note: For accessibility reasons, you should generally avoid using server-side image maps, as they require the use of a mouse. Use a client-side image map instead.
htmlImageElement.isMap = true|false; let isMap = htmlImageElement.isMap;
A Boolean value which is
true if the image is being used for a server-side
image map; otherwise, the value is
When an image marked as being part of a server-side image map is clicked, the browser constructs the string "?x,y", where x and y indicate the coordinates at which the mouse was clicked as offsets from the top-left corner of the image, specified in CSS pixels.
The browser then fetches that URL from the server and displays or downloads it
depending on the value of the
Unlike server-side image maps, client-side image maps don't cause the
<img> element to adopt interactive content mode.
|HTML Living Standard
The definition of 'HTMLImageElement.isMap' in that specification.
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