HTMLImageElement: useMap property
The useMap
property on the
HTMLImageElement
interface reflects the value of the
HTML usemap
attribute, which is a string
providing the name of the client-side image map to apply to the image.
Value
A string providing the page-local URL (that is, a URL that begins
with the hash or pound symbol, "#
") of the <map>
element
which defines the image map to apply to the image.
You can learn more about client-side image maps in our learning article Add a hitmap on top of an image.
Usage notes
The string value of useMap
must be a valid anchor for a
<map>
element. In other words, this string should be the value of the
appropriate <map>
's name
attribute with a
pound or hash symbol prepended to it.
Consider a <map>
that looks like this:
html
<map name="mainmenu-map">
<area
shape="circle"
coords="25, 25, 75"
href="/index.html"
alt="Return to home page" />
<area shape="rect" coords="25, 25, 100, 150" href="/index.html" alt="Shop" />
</map>
Given the image map named mainmenu-map
, the image which uses it should
look something like the following:
html
<img src="menubox.png" usemap="#mainmenu-map" />
For additional examples (including interactive ones), see the articles about the
<map>
and <area>
elements, as well as the guide to using image maps.
Examples
Try it
Specifications
Specification |
---|
HTML Standard # dom-img-usemap |
Browser compatibility
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