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UPGRADE YOUR SKILLS: Learn advanced Swift and SwiftUI on Hacking with Swift+! >>
Question 1/12: Which of these statements are true?
Hint: If you're not sure, try looking at or running your code. Click to show.
UISlider
valueChanged
This gets reported back to us every time the slider is moved.
CIContext
Core Image contexts are expensive to create, so it's best to re-use them where possible.
Correct!
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