Say I want to dispatch fn(gn::Function) base on the arity of gn. Is it possible?

Check out this thread [image] Finding the number of arguments of an anonymous function General Usage I have an API wherein a kwarg is a function. function apifunc(; f::Function = identity) ... end I would like to do something different depending on the number of argumen…

Methods are not first-class citizens in Julia, so you can’t directly dispatch on the signature of a function. Using isapplicabile in the body of the function is an option, FunctionWrappers.jl is also often recommended in these cases, depending on what you exactly want to achieve

[image] pablosanjose: TL;DR: isapplicable is probably your best approach for this That is incorrect, according to the thread it is applicable instead of isapplicable: [image] Finding the number of arguments of an anonymous function FWIW, applicable seems to fare fairly well and should be …

Is it possible to dispatch on the arity of a function?

New to Julia

chakravala September 28, 2019, 5:16pm 4

That is incorrect, according to the thread it is applicable instead of isapplicable:

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Is it possible to dispatch on the arity of a function?

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