Plz explain this

Question

function ex(){
Return !!2;
}
Console.log(ex())

Answer 1

! Will convert the operand to boolean first, hthe rule is any object that is null, undefined,NaN, false, 0, -0, or empty string will be false else its true.
In this cas is 2 so it'll be true
!!2 -> !!true -> !false -> true

Answer 2

thanks