{"id":211321,"date":"2025-03-03T06:43:34","date_gmt":"2025-03-03T06:43:34","guid":{"rendered":"https:\/\/namso-gen.co\/blog\/does-passing-by-value-keep-the-original-value\/"},"modified":"2025-03-03T06:43:34","modified_gmt":"2025-03-03T06:43:34","slug":"does-passing-by-value-keep-the-original-value","status":"publish","type":"post","link":"https:\/\/namso-gen.co\/blog\/does-passing-by-value-keep-the-original-value\/","title":{"rendered":"Does passing by value keep the original value?"},"content":{"rendered":"

Passing by value and passing by reference are two common ways to pass data to functions in many programming languages. When passing by value, a copy of the original value is passed to the function, while passing by reference means passing a reference to the original value. But the question remains: does passing by value keep the original value?<\/p>\n

**The answer is no.** When passing by value, a copy of the original value is made, and any changes made to this copy within the function do not affect the original value. This is because the function is working with a separate instance of the value, rather than the original one.<\/p>\n

When passing by value, the original value remains unchanged, even if the function modifies the value it receives. This can sometimes lead to confusion for beginners, as they may expect the original value to be modified. To ensure that the original value is modified, passing by reference is used instead.<\/p>\n

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