# Add custom method to Base.show
**URL:** https://discourse.julialang.org/t/add-custom-method-to-base-show/82007
**Category:** New to Julia
**Created:** [May 31, 2022, 5:53pm UTC](https://discourse.julialang.org/t/add-custom-method-to-base-show/82007 "2022-05-31T17:53:40Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Brian1](https://discourse.julialang.org/u/Brian1)
#### Post date: [May 31, 2022, 5:53pm UTC](https://discourse.julialang.org/t/add-custom-method-to-base-show/82007/1 "2022-05-31T17:53:40Z")
I have a struct named A:
```julia
struct A
dict::Dict
end
dict=Dict(:a=>1,:b=>2)
#show a dict in REPL(notebook in vscode)
Dict{Symbol, Int64} with 2 entries:
:a => 1
:b => 2
a=A(dict)
```
Then, I add a method to Base.show to show struct A:
```julia
Base.show(io::IO,a::A)=println(a.dict)
a
#show struct A in REPL
Dict(:a => 1, :b => 2)
```
Here show A as :` Dict(:a => 1, :b => 2)`, but I would like to show A like the original show of a Dict:
```julia
Dict{Symbol, Int64} with 2 entries:
:a => 1
:b => 2
```
How can I change the `Base.show` method to do this?
---
### Author:  [@StevenWhitaker](https://discourse.julialang.org/u/StevenWhitaker)
#### Post date: [May 31, 2022, 6:21pm UTC](https://discourse.julialang.org/t/add-custom-method-to-base-show/82007/2 "2022-05-31T18:21:25Z")
Using `display` instead of `println` is one way, though I would probably do something like
```julia
julia> Base.show(io::IO, a::A) = show(io, a.dict) # For one-line printing
julia> Base.show(io::IO, ::MIME"text/plain", a::A) = show(io, "text/plain", a.dict) # For multiline printing
```
(And I would also make sure the printed information explains that `a` is _not_ a `Dict`, but wraps one.)
See [Custom pretty-printing](https://docs.julialang.org/en/v1/manual/types/#man-custom-pretty-printing) for more details.
---
### Author:  [@Brian1](https://discourse.julialang.org/u/Brian1)
#### Post date: [June 1, 2022, 1:28am UTC](https://discourse.julialang.org/t/add-custom-method-to-base-show/82007/3 "2022-06-01T01:28:43Z")
Yes, thanks, it works fine. The argument `text/plain` for `Base.show` is automattically turned to a `MIME` type, weird and amazing to me.