JavaScript Functions Explained: Reusability, Parameters, and Return Values

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JavaScript functions are reusable blocks of code that can be defined once and called whenever needed, reducing repetition. They can accept parameters, allowing different inputs to be passed each time the function is called. Functions can also return values using the return keyword, making results available for further use in a program. Using functions helps keep code organized, readable, and easier to maintain. Overall, functions allow developers to break complex problems into smaller, manageable, and reusable pieces.

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