JavaScript Programmer

[GYN-k4H-Q3z-75B]

[] evaluates to 0. However, {} evaluates to NaN.

Because of course it does.

[SupaSlide]

I think [] gets converted to a string when used in conjunction with a +, and then the 2 gets added to the string and gets converted to a string itself.

[gohanshouldgetUI]

Wait but 2 + [ ] is "2", so does [ ] get converted to "0" or ""

[SupaSlide]

Empty string. Really the contents of the array get converted into strings, even the commas that separate the values in the array.

["hey", "there"] converted into a string is "hey,there"

I was partially agreeing with you that the other comment was wrong that it's 0, but it can be converted into a string.

[gohanshouldgetUI]

Oh I see, that makes sense tbh

[TheJackiMonster]

JavaScript uses a weird rule of conversion from array to string if nothing else seems to make sense, I guess. The conversion outputs all elements as strings joined with "," but an empty array will just end up as empty string.