iOS Swift - Concurrency
Which keyword is used to iterate over an
AsyncSequence in Swift?Which keyword is used to iterate over an AsyncSequence in Swift?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall async iteration syntax
To iterate over an AsyncSequence, Swift uses thefor awaitkeyword to handle asynchronous values.Step 2: Eliminate synchronous keywords
Options likefor inare for synchronous sequences, so onlyfor awaitfits.Final Answer:
for await -> Option AQuick Check:
AsyncSequence iteration keyword = for await [OK]
Quick Trick: Use 'for await' to loop async sequences in Swift [OK]
Common Mistakes:
- Using 'for in' instead of 'for await'
- Confusing with 'while let' loops
- Trying to use 'repeat until' for async sequences
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