Functions can be written to perform specific tasks and are blocks of code that are reusable.
They work by inputting parameters and returning values.
Predefined function: Character counter
The phrase "This is a character counter" contains 27 characters.
User defined function that appends "is a SOIS class"
Web Design I is a SOIS class
Info Security I is a SOIS class
Web Application Development is a SOIS class