Filter Implementation

let numbers = [15, 21, 30, 4, 5, 6, 7, 8];

function filterToOddNumbers(arr) {
  let modifiedArr = [];

  for (let i = 0; i < arr.length; i++) {
    let currentElement = arr[i];
    if (currentElement % 2 !== 0) {
      modifiedArr[modifiedArr.length] = currentElement;
    }
  }
  return modifiedArr;
}

let result = filterToOddNumbers(numbers);
console.log(result);