text: var Javabuzz = function() {};
  
  Javabuzz.prototype = {
  
    _isDivisibleBy: function(number, divisor) {
      return (number % divisor === 0);
    },
  
    isDivisibleByThree: function(number) {
      return this._isDivisibleBy(number, 3);
    },
  
    isDivisibleByFive: function(number) {
      return this._isDivisibleBy(number, 5);
    },
  
    isDivisibleByFifteen: function(number) {
      return this._isDivisibleBy(number, 15);
    },
  
    says: function(number) {
      if (this.isDivisibleByFifteen(number)) {
        return 'JavaBuzz';
      }
      if (this.isDivisibleByThree(number)) {
        return 'Java';
      }
      if (this.isDivisibleByFive(number)) {
        return 'Buzz';
      }
      return number;
    }
  }
  
  //  Alternative syntax
  
  /*
  class Javabuzz {
  
    _isDivisibleBy(number, divisor) {
      return (number % divisor === 0);
    };
  
    isDivisibleByThree(number) {
      return this._isDivisibleBy(number, 3);
    };
    isDivisibleByFive(number) {
      return this._isDivisibleBy(number, 5);
    };
    isDivisibleByFifteen(number)  {
      return this._isDivisibleBy(number, 15);
    };
  
    says(number) {
      if (this.isDivisibleByFifteen(number)) {
        return 'JavaBuzz';
      }
      if (this.isDivisibleByThree(number)) {
        return 'Java';
      }
      if (this.isDivisibleByFive(number)) {
        return 'Buzz';
      }
      return number;
    };
  
  };
  */