How to pass a Dict to a function with Keyword arguments?-CodePudding

Let's assume I have this Dict:

d=Dict("arg1"=>10,"arg2"=>20)

and a function like this:

function foo(;arg1,arg2,arg3,arg4,arg5)
  #Do something
end

How can I call the function and pass the parameters in the Dict d as parameters for the function? I know I can do this:

foo(arg1=d["arg1"],arg2=d["arg2"])

But is there any way to automate this? I mean a way to figure out which arguments are defined in the Dict and pass it automatically to the function.

CodePudding user response：

For dictionaries with Symbol keys you can splat them into the function call:

julia> d = Dict(:arg1 => 10, :arg2 => 12)
Dict{Symbol, Int64} with 2 entries:
  :arg1 => 10
  :arg2 => 12

julia> f(; arg1, arg2) = arg1   arg2
f (generic function with 1 method)

julia> f(;d...)
22