year Century

yearCentury

function yearCentury(year) {
  if (year >= 1 && year <= 100) {
    console.log(1, 'century');
  } else {
    const yearArray = String(year).split('');
    const arrayPoint = yearArray.length - 2;
    let checkValue = 0;
    for (var i = arrayPoint; i < yearArray.length; i++) {
      if (yearArray[i] == 0) {
        checkValue += 1;
      }
    }

    if (checkValue == 2) {
      let filteredArray = [];
      for (let i = 0; i < arrayPoint; i++) {
        filteredArray.push(yearArray[i]);
      }
      let century = 0;
      century = filteredArray.toString().replace(/,/g, '');
      console.log(century, 'century');
    } else {
      let filteredArray = [];
      for (let i = 0; i < arrayPoint; i++) {
        filteredArray.push(yearArray[i]);
      }
      let century = 0;
      century = filteredArray.toString().replace(/,/g, '');
      century = parseInt(century) + 1;
      console.log(century, 'century');
    }
  }
}

yearCentury(22045); // 221 century