Intro to Computer Science - Python | Khan Academy - Nested function calls | Intro to CS - Python | Khan Academy

What happens when a function calls another function? Trace how the computer uses stack frames to keep track of each function call's state. Explore how breaking down a big function into several smaller functions can improve readability and reusability. View the program used in this video at: https://www.khanacademy.org/python-program/intruder-detection/6531095526293504 Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science - Python course! 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 Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc TIMESTAMPS: 00:00 - 00:21 : function execution review 00:22 - 01:21 : tracing a nested function call 01:22 - 01:55 : managing multiple stack frames 01:56 - 02:34 : game setup - intruder detection! 02:35 - 03:42 : why not use one big function? 03:43 - 04:51 : breaking down into smaller functions 04:52 - 05:25 : decoupling the detection check 05:26 - 06:23 : reusing function building blocks