change the value of a data structure field

it's possible to avoid loop? thank

class(app.Sis)

ans =

'struct'

Sis(1).Val

ans =

'l'

h=size(Sis,2);

for i=1:h

Sis(i).Val='kkk';

end

[Stephen23]

https://www.mathworks.com/matlabcentral/discussions/tips/847976-tutorial-comma-separated-lists-and-how-to-use-them

https://www.mathworks.com/help/matlab/ref/deal.html

Answer 1

[Fangjun Jiang]

s(3).Val='1';
s.Val

ans =

     []


ans =

     []

ans = '1'

[s.Val]=deal('2')

s = 1x3 struct array with fields:
    Val

s.Val

ans = '2'

ans = '2'

ans = '2'