Which of the following best describes the difference between function declaration and definition?
- A declaration tells the compiler about the function's name, return type, and parameters, while a definition provides the actual implementation of the function.
- Declarations and definitions are the same thing.
- Declarations define the function's behavior, whereas definitions merely declare its existence.
- Declarations specify where a function can be used, while definitions specify how it should be used.
The primary difference between function declaration and definition lies in their purpose. A declaration informs the compiler about the function's signature, return type, and parameters, allowing the compiler to recognize it when used. On the other hand, a definition provides the actual implementation of the function, specifying what the function does.
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