Here is the answer of the question: When it comes to the value of a variable, what is the difference between NULL and empty?
- NULL is a blank value; empty is the lack of a value.
- A NULL value has an allocated address in memory; empty does not.
- NULL referes to the lack of a value for an integer; empty refers to the lack of a value for a string.
- NULL is the lack of a value; empty is a blank value.
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