Wow! Check out all you’ve learned about C++ functions:

• A function is a named group of statements that do something together.
• Functions allow you to create more flexible, modular, and DRY code.
• C++ has many built-in functions that you can use.
• Functions are called like function_name();
• A function has a declaration with a return type and possible parameters.
• A function has a definition (or body) with a group of statements and a possible return value.
• void functions do not have return values.
• Functions with a return value have return statements.
• Parameters are variables used as placeholders for function input values.
• Arguments are a function’s actual input values.

You now know enough C++ to create some pretty cool projects on your own. But, as you’ll see, there are still many ways to improve your code.