Adding an event listener (Video Version) @khanacademycomputing9067

Uploaded February 2015 | Updated September 2026, 2 weeks ago

This is a video recording of a talk-through, uploaded to make it easier to create subtitles.
Please watch the original interactive talk-through on Khan Academy, where you can pause and edit the code
and see the code in better resolution:
khanacademy.org/computer-programming

Adding an event listener (Video Version)

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$Resizing shapes with variable expressions | Computer Programming | Khan Academy Learn how to resize shapes proportionally to each other with fractions and variable expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/computing/computer-programming/programming/resizing-with-variables/e/quiz use-variable-expressions?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Watch the next lesson: https://www.khanacademy.org/computing/computer-programming/programming/text-basics/p/terrific-text-part-one?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Missed the previous lesson? https://www.khanacademy.org/computing/computer-programming/programming/interactive-programs/p/mouse-interaction?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Computer Programming on Khan Academy: Learn how to program drawings, animations, and games using JavaScript & ProcessingJS, or learn how to create webpages with HTML & CSS. You can share whatever you create, explore what others have created and learn from each other! About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academys Computer Programming channel: https://www.youtube.com/channel/UCzYDKG5mmfPPIosXuQ1PvEA?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy$

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Adding an event listener (Video Version)