What is difference between null and empty?

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Accepted Answer

Null represents absence of value, while empty typically refers to a variable with a value of zero length.

Null is a special value that indicates the absence of a value, while empty typically refers to a variable that has been initialized but contains no data.
Null is often used in programming languages to indicate that a variable does not point to any object or data, while empty is used to describe a variable that has been initialized but has no content.
For example, a null pointer in C++ points to no memory location, while an empty string in Python has a length of zero.

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