Building your own reusable code with functions

Overview

Teaching: 30 min
Exercises: 50 min

Questions

• How do we create reusable codes in our program?

• What are some best practices in writing reusable codes?

Objectives

• Learn how to write your own function using best practices.

• Differentiate between named and unnamed functions.

• Understand the difference between local and global variables.

• Create your first well-documented function.

Key Points

• Functions are the building block of programs.

• Functions should be small and have minimal (or better, no) side effects.

• Variables defined in a function are local and cannot be accessed outside of it.