Re: [julia-users] What is the Julia equivalent of the MATLAB function: nargin()

[Steven G. Johnson]

Note that default arguments in Julia can simplify this further.  Often you 
have Matlab code like

function y = foo(x, z)
     if nargin < 2
         z = ...default value...
     end
     ....
end


Which in Julia can be simplified to

function foo(x, z = ...default value...)
    ...
end

 
This is equivalent to declaring two functions, foo(x,z) and foo(x) = foo(x, 
...default value...)