Tuesday, October 27, 2009

Section 25.145. HTMLCollection.item( ): get an element by position










25.145. HTMLCollection.item( ): get an element by position


DOM Level 2 HTML



25.145.1. Synopsis



Node item(unsigned long index);




25.145.1.1. Arguments



index


The position of the element to be returned. Elements appear in an HTMLCollection in the same order in which they appear in the document source.





25.145.1.2. Returns

The element at the specified index, or null if index is less than zero or greater than or equal to the length property.





25.145.2. Description


The item( ) method returns a numbered element from an HTMLCollection. In JavaScript, it is easier to treat the HTMLCollection as an array and to index it using array notation.




25.145.3. Example



var c = document.images; // This is an HTMLCollection
var img0 = c.item(0); // You can use the item( ) method this way
var img1 = c[1]; // But this notation is easier and more common





25.145.4. See Also


NodeList.item( )













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