4 ms·Erm, you can leave out 'in most circumstances' and 'default'; this the way they always work.by andreasvc 14y agoErm, you can leave out 'in most circumstances' and 'default'; this the way they always work.andylei 14y agowell, (key, val) in data works if data = {(1,2) : 3}andreasvc 14y agoWell but then the variable names are just wrong.