The Collection::where() method from the old CSVelte\Collection class never made it into any of the new collection classes. It needs to be put back into TabularCollection.
There's nothing in this method you can't already do with the methods I have so I'm not going to implement it. It's too much work for not enough payoff.
The Collection::where() method from the old CSVelte\Collection class never made it into any of the new collection classes. It needs to be put back into TabularCollection.