CSSValueList.item() - Web APIs 编辑

The item() method of the CSSValueList interface is used to retrieve a CSSValue by ordinal index.

The order in this collection represents the order of the values in the CSS style property. If the index is greater than or equal to the number of values in the list, this method returns null.

Syntax

var cssValue = cssValueList.item(index);

Parameters

index

An unsigned long representing the index of the CSS value within the collection.

Return value

A CSSValue object at the index position in the CSSValueList, or null if that is not a valid index.

Specifications

Browser compatibility

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