Julia – How to index vector w/ vector of vector of indices?

Suppose idxs is a vector of vectors defined as

3-element Vector{Vector{Int64}}:
 [1, 2]
 [1, 3]
 [1, 4]

And suppose A is a vector defined as

5-element Vector{Int64}:
 6
 7
 8
 9
 10

With Python and numpy, I could simply do (in pseudocode) A[idxs] and this would return a 2-D array containing the elements

[
  [6 7]
  [6 8]
  [6 9]
]

How do I perform the same indexing in Julia, where I am indexing multiple times into a 1-dimensional vector, and retrieving a matrix of entries?

Thanks

>Solution :

The easiest solution would be to use list comprehension

julia> [A[i] for i in idxs]
3-element Vector{Vector{Int64}}:
 [6, 7]
 [6, 8]
 [6, 9]