how to use fieldnames in matlab

main.m
% create a sample structure
myStruct.name = 'Bob';
myStruct.age = 42;
myStruct.favoriteColor = 'blue';

% get the names of the fields in the structure
fields = fieldnames(myStruct);

% display the names of the fields
disp(fields);
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main.m
     'name'
     'age'
     'favoriteColor'
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main.m
% get the value of the 'name' field
name = myStruct.name;

% update the value of the 'age' field
myStruct.age = 43;
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