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    80%
    &&
      
    4%
    ||
      
    1%
    !
      
    15%
    &
      
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    25%
    value
      
    28%
    capture
      
    32%
    weak
      
    14%
    unowned
      
    Anonymous Quiz
    18%
    Copying
      
    10%
    Clonable
      
    68%
    NSCopying
      
    4%
    Duplicatable
      
    Anonymous Quiz
    61%
    defer
      
    11%
    async
      
    24%
    await
      
    4%
    delay
      
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    18%
    Set
      
    73%
    Array
      
    2%
    Dictionary
      
    7%
    Tuple
      
    ❤1
  Anonymous Quiz
    7%
    Array
      
    84%
    Set
      
    7%
    Dictionary
      
    3%
    List
      
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    24%
    enum
      
    12%
    struct
      
    61%
    protocol
      
    4%
    class
      
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    1%
    Array
      
    10%
    Set
      
    89%
    Dictionary
      
    1%
    List
      
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    83%
    weak
      
    10%
    unowned
      
    4%
    strong
      
    3%
    safe
      
    🤔1
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    15%
    static
      
    57%
    final
      
    3%
    class
      
    25%
    private
      
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    5%
    Garbage Collection
      
    1%
    Memory Pool
      
    3%
    Reference Counting
      
    92%
    Automatic Reference Counting (ARC)
      
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    89%
    async
      
    5%
    await
      
    4%
    defer
      
    2%
    dispatch
      
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    Optional
      
    2%
    Nullable
      
    1%
    Maybe
      
    4%
    None
      
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    3%
    finally
      
    56%
    defer
      
    3%
    ensure
      
    38%
    closure
      
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    17%
    public
      
    7%
    open
      
    52%
    internal
      
    25%
    fileprivate
      
    Anonymous Quiz
    35%
    as
      
    49%
    is
      
    2%
    instanceof
      
    14%
    typeof
      
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    15%
    get-only
      
    10%
    readonly
      
    6%
    computed
      
    69%
    get
      
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    7
      
    17%
    8
      
    12%
    9
      
    61%
    10
      
    Anonymous Quiz
    34%
    LiteralConvertible
      
    22%
    ExpressibleByLiteral
      
    26%
    Codable
      
    18%
    ExpressibleByStringLiteral
      
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    41%
    static
      
    15%
    instance
      
    15%
    final
      
    29%
    func