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Pass by Value vs Pass by Reference in Programming Languages

In programming languages, the difference between pass by value and pass by reference lies in how parameters are passed to functions or methods.

Pass by Value: In pass by value, a copy of the variable is passed to the function or method. Any changes made to the parameter within the function do not affect the original variable.

Pass by Reference: In pass by reference, a reference or memory address of the variable is passed to the function or method. Any changes made to the parameter within the function will directly modify the original variable.

Understanding the distinction between pass by value and pass by reference is crucial for designing efficient and predictable programming logic.

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