What is the difference between scope and lifetime in programming?

What is the difference between scope and lifetime in programming?

Scope refers to the visibility of variables in different parts of your code, while lifetime refers to how long those variables exist in memory.

Can you give me an example of scope?

Sure! In a function, variables defined inside the function have local scope, meaning they can't be accessed outside of that function.

And what about lifetime?

Lifetime is about how long a variable exists. For example, a variable declared inside a function only exists while that function is executing.

So, can a variable have a different scope and lifetime?

Yes, a variable can have a local scope with a short lifetime, or a global scope with a longer lifetime, depending on where it's declared.