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nfields

nfields(x::DataType) -> Int

Get the number of fields of a DataType.

Examples

julia> struct Person
           name::String
           age::Int
           occupation::String
       end

julia> nfields(Person)
3

In this example, the nfields function is used to determine the number of fields in the Person struct. The Person struct has three fields: name, age, and occupation. The nfields function returns the number 3, indicating the total number of fields in the Person struct.

Note: The nfields function is specifically used for DataType objects to get the number of fields they contain.

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