```
a=[]; b=[];
julia> c=[a b]
0×2 Array{Any,2}
julia> c=[1 b]
ERROR: DimensionMismatch("mismatch in dimension 1 (expected 1 got 0)")
```

This highly reduces the usefulness of the `Any`

's. In Matlab we can do

```
>> c={1 []};
>> if isempty(c{2}), c{2}=3; end
>> c
c =
[1] [3]
```

and I really wished that the same works in Julia