What is the scope and lifetime of functions in programming?

What is the scope and lifetime of functions in programming?

In programming, the scope of a function refers to the visibility of variables defined within it, while the lifetime refers to how long those variables exist in memory.

Can you explain local and global scope?

Sure! Local scope means variables are accessible only within the function they are defined in, while global scope means variables can be accessed from anywhere in the code.

What happens to local variables after the function execution?

Local variables are destroyed after the function execution ends, freeing up memory.

Are there any exceptions to this rule?

Yes, if a local variable is returned or referenced outside the function, it can persist, but typically, they are not accessible once the function completes.