This is something more subtle than that:
In [3]:
[(x->x)(x) for x in [1,2,3]]
Out[3]:
3-element Array{Int64,1}:
1
2
3
On Sunday, February 16, 2014 6:36:48 PM UTC-6, Fil Mackay wrote:
>
> What is the reason that anonymous functions lose their typing information
> as per below:
>
> julia> f = i->i
> (anonymous function)
>
> julia> [f(x) for x in [1,2,3]]
> 3-element Array{*Any*,1}:
> 1
> 2
> 3
>
> julia> function fn(i)
> i
> end
> fn (generic function with 1 method)
>
> julia> [fn(x) for x in [1,2,3]]
> 3-element Array{*Int64*,1}:
> 1
> 2
> 3
>
> Presumably this means anonymous functions cannot be used in many contexts..
>
>
