iOS Swift - Swift Language Essentials
What is the correct way to access the value for key "name" in a Swift dictionary named 'person'?
What is the correct way to access the value for key "name" in a Swift dictionary named 'person'?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall dictionary syntax in Swift
Dictionary values are accessed using square brackets with the key as a string.Step 2: Match syntax to options
person["name"] is correct; dot notation or arrow are invalid for dictionaries.Final Answer:
person["name"] -> Option AQuick Check:
Dictionary access uses brackets = person["key"] [OK]
Quick Trick: Use brackets with key string to access dictionary values [OK]
Common Mistakes:
- Using dot notation for dictionary keys
- Using arrow operator
- Calling get() method which doesn't exist
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