DOM HTMLCollection
The HTMLCollection Object
An HTMLCollection object is an array-like list of HTML elements.
Methods like the getElementsByTagName() returns an HTMLCollection.
Properties and Methods
The following properties and methods can be used on a HTMLCollection object:
| Property / Method | Description |
|---|---|
| item() | Returns the element at the specified index in an HTMLCollection |
| length | Returns the number of elements in an HTMLCollection |
| namedItem() | Returns the element with the specified ID, or name, in an HTMLCollection |
Examples
Example
Get an HTMLCollection:
var x = document.getElementsByTagName("P");
//returns a
collection of all the P elements in the document
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Example
Write the number of <P> elements in the document:
var x = document.getElementsByTagName("P");
document.write(x.length);
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Example
Loop through every element in an HTMLCollection:
x = document.getElementsByTagName("*");
l = x.length;
for (i = 0; i <
l; i++) {
document.write(x[i].tagName + "<br>");
}
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