MATLAB: How to update struct array fields with mutiple values

Question

I am trying to update a field value in a struct array. For example if I have 1*10 struct of A with a field in it called B, I want to replace the following loop with another method:

for iLoop=1:10
  A(iLoop).B = iLoop;
end

I tried:

[A.B] = deal(1:10);

And also:

A = setfield(A,num2cell(1:10),'B',num2cell(1:10),(1:10));

But none of them worked (the first method assigns the whole (1:10) vector to each 'B' field in the struct array. The second one crashes). Does anyone know how to make it work?

Answer 1

t = num2cell(1:10);
[A.B] = t{:};

See comments for the case where the struct does not already exist.