[tarsinge]

I just did some PHP the other day and I stumbled on a structure I was happy to have forgotten:

something(x, result);

somethingElse(result, result2);

anotherThing(result2, result3);

with the occasional surprise mutation when you just have to do

something(x)

and x contains the result.

I also got caught recently with MomentJS with that one when doing mydate.add and discovering it also mutated the original instead of just returning the result.

I'm a very average programmer and far from a FP purist (I mostly use JS and Rails) and I'm surprised how much I now use some FP principles and how it feels very natural to me.