How to get the typeof properties in Julia
a = reshape(1:15,3,5)
b = typeof(a)
Base.ReshapedArray{Int64, 2, UnitRange{Int64}, Tuple{}}
How can I get 'Int64' property of 'b'?
'2' is the number of dimensions. right. How to get that info from 'b'?
How to get typeof function properties in Julia
Viewed 42
1 Answers
there is the function ndims to get the number of dimensions of an array, and eltype for the return type:
julia> a = reshape(1:15,3,5);
julia> ndims(a)
2
julia> eltype(a)
Int64
more generally to get type parameters, you can use multiple dispatch:
julia> my_eltype(x::AbstractArray{T}) where T = T
my_eltype (generic function with 1 method)
julia> my_eltype(a)
Int64
julia> my_ndims(x::AbstractArray{T,N}) where {T,N} = N
my_ndims (generic function with 1 method)
julia> my_ndims(a)
2
Related