what it will print console.log(1+ + “2”)

Question

Why does this JavaScript statement:

console.log(1 +  + \"2\");

print

3

as the output? I am not sure why

Answer 1

Regarding the specific output of

console.log(1 +  + "2");

Run it on your browser console. The better question is why does it output what it does -

console.log(1 +  + "2");
              ^

That is the binary + operator, which will concatenate strings or add numbers.

console.log(1 +  + "2");
                 ^

That one is the unary + operator, which converts "2" to a number.

Don't create JavaScript like this. It's confusing.