leap-closure.js

leap-closure.js

var Year = function(input) {

  Year.prototype.isLeap = function() {

    if (input % 4 === 0) {
      if (input % 100 === 0) {
        if (input % 400 === 0) {
          return true;
        } else {
          return false;
        }
      } else {
        return true;
      }
    } else {
      return false;
    }
  }
};

module.exports = Year;

leap.js

var Year = function(input) {
  this.input = input;
  this.isLeap = function () {

    var divByFour = input % 4 === 0;
    var divByOneHundred = input % 100 === 0;
    var divByFourHundred = input % 400 == 0;

    return (divByFour && divByOneHundred && divByFourHundred) ||
      (divByFour && !divByOneHundred);
};

//Year.prototype.isLeap = function() {
//};

module.exports = Year;