Don't know what is wrong with code

JavaScript
1

For some reason, I can’t see why my code isn’t working. Any help is appreciated!!!

const squareList = (arr) => {

return arr
.filter(num => num 0 & num % parseInt(num) == 0)
.map(num => Math.pow(num, 2));

};

const squaredIntegers = squareList([-3, 4.8, 5, 3, -3.2]);
console.log(squaredIntegers);
2

Hey so lets take a loot at the callback you wrote for your Array.filter() call.

num => num 0 & num % parseInt(num) == 0)

So logically I see that you want to check if the element in the array is larger than zero (AKA a positive number) AND the number is an integer. However:

  1. You forgot the > comparison operator in num 0
  2. the AND logical operator is && not &

As an aside, num%parseInt(num)==0 may not be the most efficient solution, as parseInt takes any input, convert it to string if not a string, then convert to int. But num%1==0 would be the same, since: num=1*num

1 Like
3

Hello, @MatchaCrisp! Sorry for taking so long to respond. I corrected my silly mistake and it worked. Thank you so much for your help! :pray: :grinning_face_with_smiling_eyes:

2 Likes
4

do num > 0. I believe you forgot that, can also do num % 2 ===1. This wiill filter for any elements that when divided by 2, leave remainder 1, which is both 5 and 3.

};

5

Once the topic has been marked as solved, there is no need to fill up the topic with additional replies. Thanks.

6

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