Passing a function as an argument in a javascript function

Question

I was wondering whether this is legal to do. Could I have something like:

function funct(a, foo(x)) {
  ...
}

where a is an ar

Answer 1

And what would you like it to achieve? It seems you mixed up a function declaration with a function call.

If you want to pass another calls result to a function just write funct(some_array, foo(x)). If you want to pass another function itself, then write funct(some_array, foo). You can even pass a so-called anonymous function funct(some_array, function(x) { ... }).