What is pass by value?

Can you explain what pass by value means in programming?

Sure! Pass by value means that a copy of the variable's value is passed to a function, not the variable itself.

What happens if I modify the parameter inside the function?

If you modify the parameter, it won't affect the original variable outside the function since it's a copy.

Can you give me an example in Python?

Absolutely! In Python, if you pass a number to a function and change it inside, the original number remains unchanged.

Are there any languages that use pass by reference instead?

Yes, languages like C++ and Java can use pass by reference, allowing functions to modify the original variable.