Customized display of composite types in Julia

Question

Suppose you define a new composite type in Julia and a variable of that type:

type MyType
  α::Int64
  β::Vector{Float64}
  γ::Float64

  MyType(α::Int64, β::Vec         


        

Answer 1

You should define one of the following (they will both work and have the same effect):

function Base.show(io::IO, me::MyType)
    println(io, "MyType")
    println(io, "α:$(me.α), β:$(me.β), γ:$(me.γ)")
end

function Base.writemime(io::IO, ::MIME"text/plain", me::MyType)
    println(io, "MyType")
    println(io, "α:$(me.α), β:$(me.β), γ:$(me.γ)")
end