When studying programming, you will encounter the term "Recursion." It is that thing where "a function calls itself." For beginners, it is one of those topics that easily leads to confusion, such as ...

Recursion enables us to solve certain types of problems very elegantly, however there are certain downside to large numbers of recursive function calls; it requires large amount of stack memory, and ...

* 1. Global scope: Declared outside all functions. Lives for the whole program. * 2. Function/Local scope: Inside a function or block `{ }`. * 3. `static` local: Initialized once, persists across ...