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Identify the error in this SwiftUI code:

medium📝 Debug Q6 of 15
iOS Swift - Animations
Identify the error in this SwiftUI code:
withAnimation {
  isVisible = !isVisible
}
Assuming isVisible is a @State variable.
AMissing self keyword before isVisible causes error.
BNo error; code is correct and animates state change.
CwithAnimation cannot animate boolean toggles.
DThe closure passed to withAnimation must be async.
Step-by-Step Solution
Solution:
  1. Step 1: Check syntax correctness

    Using withAnimation with a closure toggling a @State boolean is valid syntax.
  2. Step 2: Verify self keyword necessity

    Inside closures in SwiftUI views, self is optional; no error occurs without it.
  3. Final Answer:

    No error; code is correct and animates state change. -> Option B
  4. Quick Check:

    Boolean toggle inside withAnimation is valid [OK]
Quick Trick: Toggling @State booleans inside withAnimation is valid [OK]
Common Mistakes:
  • Thinking self is always required
  • Believing withAnimation can't animate booleans
  • Assuming async closure needed

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