HTMLOptionsCollection - Web APIs | MDN

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HTMLOptionsCollection.length

Returns or sets the number of options in the collection.

HTMLOptionsCollection.selectedIndex

Returns or sets the number of options in the collection.

HTMLOptionsCollection.add()

Appends an HTMLOptionElement or HTMLOptGroupElement element to the collection of option elements or adds it before a specified option.

HTMLOptGroupElement

Appends an HTMLOptionElement or HTMLOptGroupElement element to the collection of option elements or adds it before a specified option.

HTMLOptionsCollection.remove()

Appends an HTMLOptionElement or HTMLOptGroupElement element to the collection of option elements or adds it before a specified option.

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This page was last modified on Apr 10, 2025 by MDN contributors.

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