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Document.getElementsByClassName()

The HTMLCollection interface represents a generic collection (array-like object similar to arguments) of elements (in document order) and offers methods and properties for selecting from the list.

HTMLCollection.length

HTMLCollection.item()

Returns the specific element at the given zero-based index into the list. Returns null if the index is out of range.

HTMLCollection.namedItem()

Returns the specific element at the given zero-based index into the list. Returns null if the index is out of range.

HTMLFormControlsCollection

HTMLOptionsCollection

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This page was last modified on Jun 23, 2025 by MDN contributors.

Document Object Model (DOM)

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