Writing literal [] + []? No.
Writing x + y where x and y are both arguments to a function, and some call site was passed an (empty?) array of integers instead of an integer? Believable.
Writing x + y where x and y are both arguments to a function, and some call site was passed an (empty?) array of integers instead of an integer? Believable.
Or you know, stop acting like JavaScript is unique in that improper function calling breaks your code.
I can't believe in 2015 there are still people who follow the "JavaScript equalities are WTF" mentality. If you are running into equality operator problems in JS, you are probably going to run into a myriad of problems in any language.
I can't believe in 2015 there are still people who follow the "invalid input should produce invalid output" mentality.
Or, put another way: why would a programmer want to have this "feature" instead of being notified: "hey, you're adding '[]' and '{}', that doesn't make any sense, fix that!"
Sure you can work with a language like that. But it sure doesn't feel like somebody thought all of this this through.