TIL that the main difference between a Proc and a lambda in Ruby is that lambdas act like how I would already assume Procs do
i.e. Procs and lambdas are both callable, but in a Proc, arguments are optional and “return” will return in the context of the calling method, whereas a lambda’s arguments act like a method’s, and are required unless given a default and “return” returns only from the lambda
@hirojin I mean this is just my experience with Ruby
