Baseline Widely available
The CSSStyleDeclaration.item() method interface returns a CSS property name from a CSSStyleDeclaration by index.
This method doesn't throw exceptions as long as you provide arguments; the empty string is returned if the index is out of range and a TypeError is thrown if no argument is provided.
index
The index of the node to be fetched. The index is zero-based.
A string that is the name of the CSS property at the specified index.
JavaScript has a special simpler syntax for obtaining an item from a NodeList by index:
const propertyName = style[index];
TypeError
Thrown if no argument is provided.
const style = document.getElementById("div1").style;
const propertyName = style.item(1); // or style[1] - returns the second style listed
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