Learning Objectives

• What is Functional Programming?
• Why Functional Programming?

Functional Programming

• Functional programming is a coding paradigm in which we define what to do instead of performing actions.

• Here, we define the inputs that go into the function and the output that we expect from it.

• You should have started getting the feel. You already know how to define functions from the course - ‘Introduction to Python Basics for Data Science.’

Why Functional Programming?

• It helps you avoid writing the same set of code again and again
• Once you have defined a set of instructions to do certain task, you can just call the same function wherever you want to perform the same action.
• Codes are more manageable and organized

Functional Programming

• Other than the ‘user-defined function’ that you learned in the course - ‘Introduction to Python Basics for Data Science’ there are some other functional programming concepts.
• map(), filter(), lambda, etc.
• You will learn these three functional programming in upcoming topics.