code generated by software developer

 @param numAnimals 

  @param avgFood 

 

  @return 

 

function calculateFoodOrder(numAnimals, avgFood) {

    if ((Number(numAnimals) >= 0) && (Number(avgFood) >= 0)) {

        return (numAnimals * avgFood);

    } else {

        return -1;

    }

}

 @param week

  @return 

function mostPopularDays(week) {

    if ((week == null) || (week.length==0)) return null;

    var maxTraffic = week[0].traffic; 

    for (var day of week) {

        if (day.traffic > maxTraffic) {

            maxTraffic = day.traffic;

        }

    }

    var dayArr = [];

    var i=0;

    for (var day of week) {

        if (day.traffic == maxTraffic) {

            dayArr[i++] = day.name;

        }

    }

    if (dayArr.length==1) return dayArr[0];

    return dayArr;

}

 @param names 

 @param types 

 @param breeds

  @return  

  

function createAnimalObjects(names, types, breeds) {

    if ((names==null) || (types==null) || (breeds==null)) return [];

    else if ((names.length==types.length) && (names.length==breeds.length) && (names.length!=0)) {

        var arrAnimal = [];

        for (var i=0; i<names.length; i++) {

            arrAnimal[i] = new Animal(names[i], types[i], breeds[i]);

        }

        return arrAnimal;

    } else {

        return [];

    }

}

 

 

function Weekday (name, traffic) {

    this.name = name;

    this.traffic = traffic;

}

 

function Item (name, barcode, sellingPrice, buyingPrice) {

     this.name = name;

     this.barcode = barcode;

     this.sellingPrice = sellingPrice;

     this.buyingPrice = buyingPrice;

}

  

function Animal (name, type, breed) {

    this.name = name;

     this.type = type;

     this.breed = breed;

}

 

function helloworld() {

    return 'hello world!';

}

 

var assert = require("assert");

describe('calculateFoodOrder', ()=> {

  it('calculateFoodOrder should calculate amount of food to order when inputs are positive numbers', () => {

    var test = calculateFoodOrder(10,  3);

    var expected = 30;

    assert(test === expected);

  });

  it('calculateFoodOrder should return -1 when numAnimals < 0', () => {

    var test = calculateFoodOrder(-1,  1);

    var expected = -1;

    assert(test === expected);

  });

  it('calculateFoodOrder should return -1 when numAnimals is non-numeric', () => {

    var test = calculateFoodOrder('dog',  1);

    var expected = -1;

    assert(test === expected);

  });

  it('calculateFoodOrder should return -1 when avgFood < 0', () => {

    var test = calculateFoodOrder(1,  -1);

    var expected = -1;

    assert(test === expected);

  });

  it('calculateFoodOrder should return -1 when avgFood is non-numeric', () => {

    var test = calculateFoodOrder(1,  'dog');

    var expected = -1;

    assert(test === expected);

  });

});

describe('mostPopularDays', ()=> {

  it('mostPopularDays should return day with maximal traffic when one day has most traffic', () => {

    var day1 = new Weekday("Sunday", 100);

    var day2 = new Weekday("Monday", 200);

    var day4 = new Weekday("Wednesday", 300);

    var day3 = new Weekday("Tuesday", 150);

    var week = [day1, day2, day3, day4];

    var expected = "Wednesday";

    var test = mostPopularDays(week);

    assert(test === expected);

  });

  it('mostPopularDays should return an array of days when more than one day has most popular traffic',

    () => {

      var day1 = new Weekday("Sunday", 100);

      var day2 = new Weekday("Monday", 300);

      var day4 = new Weekday("Wednesday", 300);

      var day3 = new Weekday("Tuesday", 150);

      var week = [day1, day2, day3, day4];

      var test = mostPopularDays(week);

      assert(test.length == 2);

      assert(test.indexOf("Monday") != -1);

      assert(test.indexOf("Wednesday") != -1);

       

    });

  it('mostPopularDays should return null when input array is empty',

    () => {

      var week = [];

      var test = mostPopularDays(week);

      assert(test === null);

    });

  it('mostPopularDays should return null when input array is null',

    () => {

      var test = mostPopularDays(null);

      assert(test === null);

    });

});

describe('createAnimalObjects', () => {

  it('createAnimalObjects should return an array of one animal object when each array has one value',  () => {

    var animal1 = new Animal("Lola", "Dog", "Golden Retriever");

    var test = createAnimalObjects(["Lola"], ["Dog"], ["Golden Retriever"]);

    assert(test[0].name === animal1.name);

    assert(test[0].type === animal1.type);

    assert(test[0].breed === animal1.breed);

  });

  it('createAnimalObjects should return an array of two animal objects when each array has two values',  () => {

    var animal1 = new Animal("Lola", "Dog", "Golden Retriever");

    var animal2 = new Animal("Sprinkles", "Dog", "Pitbull");

    var test = createAnimalObjects(["Lola", "Sprinkles"], ["Dog", "Dog"], ["Golden Retriever", "Pitbull"]);

    assert(test[0].name === animal1.name);

    assert(test[0].type === animal1.type);

    assert(test[0].breed === animal1.breed);

    assert(test[1].name === animal2.name);

    assert(test[1].type === animal2.type);

    assert(test[1].breed === animal2.breed);

  });

  it('createAnimalObjects should return an empty array when input array lengths are unequal',  () => {

    var animal1 = new Animal("Lola", "Dog", "Golden Retriever");

    var test = createAnimalObjects(["Lola"], ["Dog", "Dog"], ["Golden Retriever"]);

    assert(test.length === 0);

  });

  it('createAnimalObjects should return an empty array when input array lengths are 0',  () => {

    var test = createAnimalObjects([], [], []);

    assert(test.length === 0);

  });

  it('createAnimalObjects should return an empty array when first input is null',  () => {

    var test = createAnimalObjects(null, ["Dog"], ["Beagle"]);

    assert(test.length === 0);

  });

  it('createAnimalObjects should return an empty array when second input is null',  () => {

    var test = createAnimalObjects(["Snoopy"], null, ["Beagle"]);

    assert(test.length === 0);

  });

  it('createAnimalObjects should return an empty array when third input is null',  () => {

    var test = createAnimalObjects(["Snoopy"], ["Dog"], null);

    assert(test.length === 0);

  });

})

Coding of most popular days

(Most Popular Days of the Week)

 

  function mostPopularDays(week)
{
    this.name=name;
    this.traffic=traffic;
   var sat = new Weekday('Saturday', 33);
var sun = new Weekday('Sunday', 23);
var mon = new Weekday('Monday',NaN);
var tue = new Weekday('Tuesday', 33);
var wed = new Weekday('Wednesday', 5);
var thu = new Weekday('Thursday', 18);
var fri = new Weekday('Friday', 29);
var week = [sat , sun , mon , tue , wed , thu , fri];

  
   week.sort((a, b) => b.traffic - a.traffic); // sort by descending order
   return week
           .filter(day => day.traffic === week[0].traffic)
           .map(day => day.name);
    
    return week.filter(day=> day.NaN === week [traffic.map(day=> day.name)


    	function mostPopularDays(week) {
    if (week && week.length) {
        result = [];
        maxTraffic = 0;
        for (var day of week) {
            var dayTraffic = day.traffic;
            if (dayTraffic > maxTraffic) {
                result = [day.name];
                maxTraffic = dayTraffic;
            } else if (dayTraffic == maxTraffic) {
                result.push(day.name);
            }
        }
        return (result.length > 1) ? result : result[0];
    }
    return null;
}
    
//console.log(mostPopularDays(week)); // [Saturday, Tuesday]