MATLAB: How to concatenate a single field from a multi-dimensional struct

Question

I have a 1xN struct where a specific field is always an Mx1 cell array of strings, and I wish to concatenate all of these cell arrays without using a for loop. Any idea of how I may do this? Here's an example to illustrate what I mean:

 var_info = 
1×8 struct array with fields:
    name
    vars
    path
size(var_info(1).vars)
 ans =
    51     1
 size(var_info(6).vars)
 ans =
     8     1

I can achieve this now using for loops (see below) But I figured there must be some more elegant method of doing so that doesn't use as much memory. (Note: The unique function is included so I can get rid of duplicate strings as I go.)

 entire_list = {};
 for i = 1:length(var_info)
    entire_list = [entire_list; var_info(i).vars];
    entire_list = unique(entire_list);
 end

Thanks.

Answer 1

Simply:

{var_info.vars}