Applying Julia function to nested array of arrays

Question

Is there a simpler way to do apply a function in Julia to nested array than defining a new function? - e.g. for this simple example:

a = collect(1:10)
b = [ a*i for i in 100:100:400]

arraylog(x) = log.(x) ## Need to define an extra function to do the inner array?
arraylog.(b)

Answer 1

I would use a comprehension just like you used it to define b: [log.(x) for x in b].

The benefit of this approach is that such code should be easy to read later.

EDIT

Referring to the answer by Tasos actually a comprehension implicitly defines an anonymous function that is passed to Base.Generator. In this use case a comprehension and map should be largely equivalent.

I assumed that MR_MPI-BGC wanted to avoid defining an anonymous function. If it were allowed one could also use a double broadcast like this:

(x->log.(x)).(b)

which is even shorer but I thought that it would not be very readable in comparison to a comprehension.