Union, intersection, difference, and more are coming to JavaScript Sets
sonarsource.com
sonarsource.com
This may be a 20th century viewpoint, but I would hesitate to call anyone who couldn't write all of these functions a programmer.
Introducing network round trips to use convenient syntax seems ... suboptimal.
There is a reason why python is used for ML for mathematical calculations. You could do all low level matrix multiplication using custom functions uisng any language. But is that optimal way to dob that.
My use case is similar