Final answer:
The line of code provided is a single line comment, used for documentation and does not affect code execution.
Step-by-step explanation:
The line of code // the loop function runs over and over again forever is known as a single line comment in programming. This type of comment is used for documentation purposes and does not affect the execution of the code. Comments are essential for providing context or explaining what a certain piece of code is supposed to do, making it easier for someone reading the code to understand the programmer's intent.