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showcompact

showcompact(x)

Show a more compact representation of a value. This is used for printing array elements. If a new type has a different compact representation, it should overload showcompact(io, x) where the first argument is a stream.

Examples

1. Print compact representation of an array:

   julia> arr = [1, 2, 3, 4, 5];
   julia> showcompact(arr)
   [1, 2, 3, 4, 5]

   This example shows the compact representation of the array arr.

2. Print compact representation of a nested array:

   julia> nested_arr = [[1, 2], [3, 4], [5, 6]];
   julia> showcompact(nested_arr)
   [[1, 2], [3, 4], [5, 6]]

   It demonstrates the compact representation of a nested array.

3. Print compact representation of a custom type:

   julia> struct Person
             name::String
             age::Int
         end
   julia> p = Person("Alice", 30);
   julia> showcompact(p)
   Person("Alice", 30)

   In this example, a custom type Person is defined, and showcompact is used to print a compact representation of an instance of that type.

Common mistake example:

julia> val = 10;
julia> showcompact(val)
ERROR: MethodError: no method matching showcompact(::Int64)

In this example, the showcompact function is called with an argument of type Int64. However, showcompact does not have a method defined for Int64. It's important to ensure that the argument passed to showcompact is of a type for which there is an appropriate method defined.

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