Language Upgrades · interview question
Why is pattern matching in a switch especially valuable over a sealed hierarchy?
Multiple choiceMediumchapter-12-curatedpremiumlanguage-upgradespattern-matching
Answer and explanation
Correct answer
D. Readable typed handling plus compiler-checked exhaustiveness
Why
Pattern matching in switch expressions reduces manual casts and makes each branch explicit. With sealed types, the compiler can also force you to handle every valid variant.
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