https://www.khanacademy.org/computing/computer-programming/programming/functions/pt/functions 2022-09-10T01:34:41.474092194Z Functions Pamela explains how you can write your own custom functions to group your code and make it more reusable. talkthrough https://www.khanacademy.org/computing/computer-programming/programming/functions/pc/challenge-say-your-name 2022-09-10T01:34:41.474092194Z Challenge: Say Your Name challenge https://www.khanacademy.org/computing/computer-programming/programming/functions/pt/function-parameters 2022-09-10T01:34:41.474092194Z Function Parameters Pamela shows how you can pass parameters into custom functions, so that they can behave differently each time you call them. talkthrough https://www.khanacademy.org/computing/computer-programming/programming/functions/pc/challenge-moles-in-holes 2022-09-10T01:34:41.474092194Z Challenge: Moles in Holes challenge https://www.khanacademy.org/computing/computer-programming/programming/functions/pt/function-return-values 2022-09-10T01:34:41.474092194Z Function Return Values Pamela explains how to return values from functions, especially useful in doing calculations. talkthrough https://www.khanacademy.org/computing/computer-programming/programming/functions/pc/challenge-calculator 2022-09-10T01:34:41.474092194Z Challenge: Calculator challenge https://www.khanacademy.org/computing/computer-programming/programming/functions/pt/local-and-global-variables 2022-09-10T01:34:41.474092194Z Local and Global Variables Pamela explains the difference between "local" and "global" variables, a tricky concept in programming. talkthrough https://www.khanacademy.org/computing/computer-programming/programming/functions/pt/special-processingjs-functions 2022-09-10T01:34:41.474092194Z Special ProcessingJS functions Pamela explains the special predefined ProcessingJS functions that we use for drawing and interaction, like `draw()` and `mouseMoved()`. talkthrough https://www.khanacademy.org/computing/computer-programming/programming/functions/a/review-functions 2021-04-29T07:52:18Z Review: Functions article https://www.khanacademy.org/computing/computer-programming/programming/functions/pp/project-fish-tank 2022-09-10T01:34:41.474092194Z Project: Fish tank <p> This program draws a single fish. Poor lonely fish! For this project, you'll use functions to accompany him with more fish of all different shapes and colors. </p> <ol class="styled-list"> <li>Create a custom function (like <code>drawFish</code>) that draws a fish. You can build on the starter code or start from scratch.</li> <li>Add at least 2 parameters to the function declaration that control either the position or the size of the fish.</li> <li>Now call that function many times, with different values as arguments, so that your screen is filled with fish.</li> <li>Bonus: Add more parameters to the function declaration, like color, tail width, eye size, tail color—more ways that you can make each fish different from each other.</li> <li>Bonus: Add seaweed to the tank, pebbles at the bottom, or bubbles floating to the top. Whatever objects you add, make a function to draw them at different places.</li> <li>Bonus: Want to make it interactive? Use a <code>mouseClicked</code> function to add more fish wherever the user clicks.</li> </ol> <p>Don't like fish? You could draw a collection of cats or a variety of cars instead. The important thing is to use functions to make your drawing code reusable.</p> project