Output: "null" (string representation of the null value)
Example 5:
Input: undefined
Output: "undefined" (string representation of the undefined value)
Explanation:
The double quotes "" in JavaScript represent a string. A string is a sequence of characters enclosed in quotation marks. It can contain any characters, including spaces, numbers, and symbols.
When you use double quotes to wrap a value, it becomes a string. For example, the value "Hello" is a string, and the value "123" is also a string.
Null and undefined are two special values in JavaScript that represent the absence of a value. When you use double quotes to wrap these values, they are converted to their string representations, which are "null" and "undefined", respectively.