web api instance method
CSSValueList: item() method
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.
[!NOTE] This method was part of an attempt to create a typed CSS Object Model. This attempt has been abandoned, and most browsers do not implement it.
To achieve your purpose, you can use:
- the untyped CSS Object Model, widely supported, or
- the modern CSS Typed Object Model API, less supported and considered experimental.
Syntax
item(index)
Parameters
index- : An
unsigned longrepresenting the index of the CSS value within the collection.
- : An
Return value
A CSSValue object at the index position in the
CSSValueList, or null if that is not a valid index.
Specifications
This feature was originally defined in the DOM Style Level 2 specification, but has been dropped from any standardization effort since then.
It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.