Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
nope it does not
Agreed terrible instructions!
There isn't such issue, it works well for everyone else.
As far as I can remember, when the Typescript translation was written the Typescript type checker considered null and undefined to be valid values of every type.
TypeScript team doesn't anymore use null but undefined. However, NodeJS style code bases uses null as it denotes something currently unavailable.
Note that the CW type checker admit null value as a number[].
I think it is too late to change something now since it will invalidate solutions of guys who scrupulously followed the kata.
Sorry for that.