HTML | DOM Map areas Collection
The Map areas Collection in HTML DOM is used to return the collection of all <area> elements in an image-map. The area elements are sorted as they appear in the source code.
Syntax:
mapObject.areas
Properties: It returns the number of area in the collection of elements.
Methods: The DOM Map areas Collection contains three methods which are listed below:
- [index]: It is used to return the <form> element of the specified index. The index value starts with 0. NULL value is returned if the index value is out of range.
- item(index): It is used to return the <form> element of specified index. The index value starts with 0. NULL value is returned if the index value is out of range. This method performs similarly to the above method.
- namedItem(id): It is used to return the <form> element from the collection which matches the specified id. NULL value is returned if the id does not exist.
Return Value : It returns an HTMLCollection Object that represents all <area> elements in an image-map in the document. The elements in the collection are sorted in the way they appear in the source code.
Example:
html
<!DOCTYPE html><html><head> <title> HTML DOM Map areas Collection </title></head><body> <h2> GeeksForGeeks </h2> <h2>HTML DOM Map areas Collection</h2> <button onclick = "GFG()"> Click Here! </button> <p></p> <map id = "Geeks" name = "Geeks"> <area shape = "rect" coords = "0, 0, 110, 100" alt = "Geeks" href = <area shape = "rect" coords = "110, 0, 190, 100" alt = "For" href = <area shape = "rect" coords = "190, 0, 300, 100" alt = "GEEKS" href = </map> <img src = width = "300" height = "100" alt="GFG" usemap = "#Geeks"> <p id = "GEEK!"></p> <script> function GFG() { var x = document.getElementById("Geeks").areas.length; document.getElementById("GEEK!").innerHTML = x; } </script> </body></html> |
Output:
- Before Clicking the Button:
- After Clicking the Button:
Supported Browsers: The browsers supported by HTML DOM Map areas Collection are listed below:
- Google Chrome
- Internet Explorer
- Firefox
- Apple Safari
- Opera
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