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      Fidelity Investments

      Azienda coinvolta

      Colloquio per IOS Engineer presso Fidelity Investments

      Domanda di colloquio di Fidelity Investments

      Colloquio per IOS Engineer

      What is the difference between a struct and a class?

      Risposte di colloquio

      Anonimo

      25 ott 2024

      class: reference type, shared mutable state, inheritance struct: value type, immutable, no inheritance

      Anonimo

      3 nov 2024

      Structs are value type and use stack data structure, thread safe due to the creating new copy every time (value type) Classes are reference type and use heap data structure, thread safety is not guaranteed and needs manual efforts to ensure it.

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