[Solved] How can you combine TaskGroup with cancellation support to stop all child tasks if one fails? — Ans: Use withThrowingTaskGroup and cancel remaining tasks on error | iOS Swift

iOS Swift - Concurrency

How can you combine TaskGroup with cancellation support to stop all child tasks if one fails?

ACreate separate Tasks and cancel manually without TaskGroup

BUse withTaskGroup and ignore errors

CUse withThrowingTaskGroup and cancel remaining tasks on error

DUse DispatchQueue instead of TaskGroup for cancellation

Step-by-Step Solution

Solution:

Step 1: Understand throwing TaskGroup
withThrowingTaskGroup supports error propagation and cancellation.
Step 2: Cancel remaining tasks on error
If one child task throws, the group cancels others automatically.
Final Answer:
Use withThrowingTaskGroup and cancel remaining tasks on error -> Option C
Quick Check:
withThrowingTaskGroup handles errors and cancels tasks [OK]

Quick Trick: Use withThrowingTaskGroup for error and cancellation support [OK]

Common Mistakes:

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How can you combine TaskGroup with cancellation support to stop all child tasks if one fails?