Author: Khan Academy via YouTube
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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science – Python course!

How can we reuse a code routine over and over again? Learn how to use functions to package a block of code and parameters to generalize it. Learn how to write your own function definitions, and explore how the computer executes a function call. View the program used in this video at: https://www.khanacademy.org/python-program/health-potions/4851312333602816

Course link: https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:playing-games-with-functions
Course playlist: https://www.youtube.com/playlist?list=PLSQl0a2vh4HDkbhG0sDW0b-VZXykEIAe5

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TIMESTAMPS:
00:00 – 00:16 : code duplication
00:17 – 00:43 : what is a function?
00:44 – 01:10 : function inputs and outputs
01:11 – 02:24 : function definition syntax
02:25 – 03:17 : calling a function
03:18 – 03:54 : refactoring a program into functions
03:55 – 04:41 : why use functions?

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