Question

Set including "cat family animals that can fly", can be an example of ______ set.
Select one:
a. void
b. null
c. all of these
d. empty

Answer 1

Answer:

null is the correct answer

Answer 2

Answer:

Set including "cat family animals that can fly", can be an example of null set.

Explanation:

A null value in computer science refers to a reference that, typically on purpose, points to an incorrect or nonexistent item or address. The definition of a null reference differs depending on the language being used.

Because of its seeming primitive behavior, null is designated as one of the primitive values in JavaScript. The typeof operator, however, returns "object" when used. At a high level, NULL can be viewed as a null pointer that is employed in C for a variety of functions. The following are some of the most typical uses for NULL: When a pointer variable hasn't yet been given a legitimate memory address, initialising it is necessary. b) Before accessing any pointer variable, look for a null pointer. Thus, we can carry out error handling in pointer related code, e.g., dereference a pointer variable only if it’s not NULL. c) To pass a null pointer to a function argument when we don’t want to pass any valid memory address

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