Lesson 18 of 20 · Abstraction

Abstraction — Part 18

Hide details and work with simple ideas.

What you'll learn

You will learn that abstraction means using things by name without needing to know the details inside.

Words to know

Abstraction: Using something by its name without needing to know every detail of how it works.
Parameter: Information you pass into a function (e.g. name). The function uses it inside.
Detail: The inner workings hidden behind a function name.

Your turn

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Try it: run the code, then change it

1greet('Alex') prints 'Hello, Alex'. You don't need to know HOW print() draws text on screen — you just use it. That's abstraction!
2Abstraction means using something by name without knowing every detail inside. You use a TV remote without knowing its circuits.
3The greet() function takes a 'name' parameter — different input, same behavior. greet('Alex') → Hello, Alex. greet('Sam') → Hello, Sam.
4As you build bigger programs, you'll create your own functions to hide complexity. This keeps code clean and easy to understand.

Auto-run is on: change the code and the result updates by itself.

Auto-run

Output

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Check your understanding · 1 of 3

When you use print(), you don't need to know:

Check your understanding · 2 of 3

A function is a form of:

Check your understanding · 3 of 3

What is abstraction?

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