HTML DOM Map areas set
Examples
Get the number of image map <area> element:
var x = document.getElementById ( "planetmap") areas.length.;
x output values:
3
try it"
Definitions and use
areas set to return a collection of all <area> element of the image map.
Note: The elements of the collection sorted in source code order.
Tip: If you need to return a set of attributes href all <area> element is specified, 'You need to use the links collection.
Browser Support
All major browsers support the collection areas.
grammar
mapObject .areas
Attributes
| Attributes | description |
|---|---|
| length | Returns the number of the collection <area> element |
method
| method | description |
|---|---|
| [Name_or_index] | String or integer that specifies the element to retrieve (index starting with 0) |
| item(name_or_index) | Returns the index / name / id of the element from the collection |
| namedItem(name_or_id) | Returns the specified name from the collection of elements (name or id attribute) |
More examples
Examples
[Name_or_index]
Get a map image URL first <area> element:
var x = document.getElementById ( "planetmap") areas [0] .href.;
try it"
Examples
item (name_or_index)
Get a map image URL first <area> element:
var x = document.getElementById ( "planetmap") areas.item (0) .href.;
try it"
Examples
namedItem (name_or_id)
Acquiring an image map id = "myArea" of <area> element URL:
var x = document.getElementById ( "planetmap") areas.namedItem ( "myArea") href..;
try it"
Examples
Get in shape image map all <area> element:
var x = document.getElementById ( "planetmap");
var txt = "";
for (var i = 0; i <x.areas.length; i ++)
{
txt = txt + x.areas [i] .shape + "<br>";
}
document.getElementById ( "demo") innerHTML = txt.;
var txt = "";
for (var i = 0; i <x.areas.length; i ++)
{
txt = txt + x.areas [i] .shape + "<br>";
}
document.getElementById ( "demo") innerHTML = txt.;
try it"