Kotlin - Control Flow as Expressions
Why does Kotlin allow multiple conditions separated by commas in a single when branch instead of using logical operators like && or ||?
Why does Kotlin allow multiple conditions separated by commas in a single when branch instead of using logical operators like && or ||?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the meaning of commas in when branches
Commas separate multiple values meaning OR logic, so the branch matches if any condition is true.Step 2: Compare with logical operators usage
Logical operators like && and || are not allowed because they complicate syntax and reduce readability.Final Answer:
Because commas represent OR logic, making code clearer and concise. -> Option BQuick Check:
Commas mean OR logic for clarity in when = C [OK]
Quick Trick: Commas mean OR logic, clearer than && or || in when [OK]
Common Mistakes:
MISTAKES- Thinking && or || are allowed in when
- Believing commas mean AND logic
- Assuming logical operators cause runtime errors
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