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      Fidelity Investments

      Empresa engajada

      Entrevista do cargo de IOS Engineer da empresa Fidelity Investments

      Pergunta de entrevista da empresa Fidelity Investments

      Entrevista para IOS Engineer

      What is the difference between a struct and a class?

      Respostas da entrevista

      Sigiloso

      25 de out. de 2024

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

      Sigiloso

      3 de nov. de 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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