What is the output of the following code? function magic (...nums) { let sum = 0; nums.filter(n=>n%2==0).map(el=>sum+=El);}

Answer 1

the answer is 12, it because with this "nums.filter(n=>n%2==0)" all the argumnets that are mod by 2 should be equal to 0 and with "map(el=>sum+=El" the all result return by the "nums.filter(n=>n%2==0)" will be added to each other. that's how i understand it, i am not really good at speaking english hope you get my point. :D

Answer 2

Referencing to Nathaniel Baleña, it means that with ""map(el=>sum+=El", it will filter out the numbers that we get from the original array. We should get 2, 4 and 6. Then, simply add 2, 4 and 6 together to get 12.

Answer 3

12

Answer 4

I want to understand how and why the result is 12, I have failed to understand some one please help me

Answer 5

answer is 12

Answer 6

How

Answer 7

right, the answer is: 12

Answer 8

This should be 12

Answer 9

12

Answer 10

the answer is 12

Answer 11

answer is 12

Answer 12

12

Answer 13

answer is 12

Answer 14

12

Answer 15

answer is12

Answer 16

What will be the output? (Try it out. It’s tricky.)

const nums = [1,2,3,4,5];
let output = nums.filter(n => n%2);
console.log(output);