It's hard to talk in the abstract because obviously people can abuse any type of code feature, but I generally find chaining array methods, and equivalents like c# linq, much easier to read and understand than their looping equivalents.
The fact that you single out .reduce() here is really telling to me. .reduce() definitely has a learning curve to it, but once you're used to it the resulting code is generally much simpler and the immutability of it is much less error-prone. I personally expect JS devs to be on the far side of that learning curve, but there's always a debate about what it's reasonable to expect.
The fact that you single out .reduce() here is really telling to me. .reduce() definitely has a learning curve to it, but once you're used to it the resulting code is generally much simpler and the immutability of it is much less error-prone. I personally expect JS devs to be on the far side of that learning curve, but there's always a debate about what it's reasonable to expect.