Ever wonder how those neat painting applications work? Completing this coding activity will give you some insight. First, starting with a simple function that draws a small circle as the mouse moves around the screen, adjust the function to draw the circles only when the mouse is pressed. Lastly, color the circles and remove the outline of the circle. Wow! You've created the first part of your very own painting app! 

Concepts

javascript, computer code, Computer Programming, coding, computer drawing, animation

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Additional Tags

programming in javascript, drawing and animation coding

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Pros

• Simple, easy-to-follow steps guide learners as they work through the coding activity
• The results from changes in code are immediately displayed so coders can develop a deeper understanding of their code

Cons