Introduction

The first century spans from the year 1 up to and including the year 100, The second – from the year 101 up to and including the year 200, etc.

Task :

Given a year, return the century it is in.

Input , Output Examples :

1705 --> 18
1900 --> 19
1601 --> 17
2000 --> 20

Hope you enjoy it .. Awaiting for Best Practice Codes

Enjoy Learning !!!

const century = year => Math.ceil(year/100)

// 

function century(year) {
  return (year + 99) / 100 | 0;
}

//

function century(year) {
  var century = 0;
  
  for(var i = 0; i < year; i++) {
    if(i % 100 == 0) {
      century++;
    }
  }
  return century;
}