What is the fastest data type out of these?

[laborg]

NamedTuples vs Dict

I wondered about use cases of NamedTuples vs Dicts. Obviously one would choose a NamedTuple if the order of elements is important and a Dict if the keys have to be something else than a symbol, but are there any other situations where one is preferred over the other?

I wouldn’t worry about performance in the beginning. Do what you want to do, and if it’s too slow, people in this forum will certainly help you.