Note: This feature is available in Web Workers.
The item() method returns a string from a DOMStringList by index.
item(index)JavaScript also offers an array-like bracketed syntax for obtaining an item from a DOMStringList by index:
list[index];indexthe index of the string to get. The index is zero-based.
The string at the index position in the DOMStringList; otherwise null if the provided index is out of range.
TypeErrorThrown if no argument is provided.