JAVASCRIPT

Question

What is the output of the following code?
function magic(...nums) {
let sum = 0;
nums.filter(n => n % 2 == 0).map(el => sum+= el);
return sum;
}
console.log(magic(1, 2, 3, 4, 5, 6));

please whats the output?

Answer 1

What output did you got?

Answer 2

There is code playground to check output

Answer 3

12

Answer 4

Actually you overcomplicated a bit.
Try to use "reduce" like:

return nums.filter(n => n % 2 == 0).reduce((n1,n2) => n1+n2);