Array.filter not working as expected, I am getting Null Array in the end

Question

const normArray = [1, 2, 3, 4, 5];           //array

const mapArray = normArray.map((num)=>{ 
  return num * 5;
})                                           //mapping

const filterArray = mapArray.filter((num)=>{ 
  num > 5;
})                                           //filtering


console.log(mapArray);
console.log(filterArray);

Output is = [5, 10, 15, 20, 25] & [ ] , why null filtered Array? Peace & Blessings be upon you :) Thanks!

Answer 1

You are not returning a boolean inside the function parameter. It should be:

const filterArray = mapArray.filter((num)=>{ 
  return num > 5;
});