The "&" with no parameters
elixir
Solution
The `&` syntax cannot be used to create such anonymous functions because the compiler can't know whether you wanted to create a 0 or 1 or 2 or more arity function. You'll have to keep using `fn(_) -> :some_module.test456(789) end`.
Problem
I have this: ``` case test123(&(:some_module.test456(789))) do # ... end ``` An error: ``` invalid args for &, expected an expression in the format of &Mod.fun/arity, &local/arity or a capture containing at least one argument as &1, got: :some_module.test456(789) ``` However, I don't have a parameter to pass into it and previously it was merely ``` fn(_) -> :some_module.test456(789) end ``` How to fix it? Switch back to "fn"?