text: var _; // globals
  
  describe("About Applying What We Have Learnt", function() {
    var products;
  
    beforeEach(function () { 
      products = [
         { name: "Sonoma", ingredients: ["artichoke", "sundried tomatoes", "mushrooms"], containsNuts: false },
         { name: "Pizza Primavera", ingredients: ["roma", "sundried tomatoes", "goats cheese", "rosemary"], containsNuts: false },
         { name: "South Of The Border", ingredients: ["black beans", "jalapenos", "mushrooms"], containsNuts: false },
         { name: "Blue Moon", ingredients: ["blue cheese", "garlic", "walnuts"], containsNuts: true },
         { name: "Taste Of Athens", ingredients: ["spinach", "kalamata olives", "sesame seeds"], containsNuts: true }
      ];
    });
  
    /*********************************************************************************/
  
    it("given I'm allergic to nuts and hate mushrooms, it should find a pizza I can eat (imperative)", function () {
      var i,j,hasMushrooms, productsICanEat = [];
  
      for (i = 0; i < products.length; i+=1) {
          if (products[i].containsNuts === false) {
              hasMushrooms = false;
              for (j = 0; j < products[i].ingredients.length; j+=1) {
                 if (products[i].ingredients[j] === "mushrooms") {
                    hasMushrooms = true;
                 }
              }
              if (!hasMushrooms) productsICanEat.push(products[i]);
          }
      }
  
      expect(productsICanEat.length).toBe(1);
    });
  
    it("given I'm allergic to nuts and hate mushrooms, it should find a pizza I can eat (functional)", function () {
        var productsICanEat = [];
  
        /* solve using filter() & all() / any() */
        
        productsICanEat = _(products).filter(function (x) { return !x.containsNuts && !_(x.ingredients).any(function(y) { return y == "mushrooms" }) });
        // filter products that DO NOT have nuts and
  
        expect(productsICanEat.length).toBe(productsICanEat);
    });
  
    /*********************************************************************************/
  
    it("should add all the natural numbers below 1000 that are multiples of 3 or 5 (imperative)", function () {
      var sum = 0;
  
      for(var i=1; i<1000; i+=1) {
        if (i % 3 === 0 || i % 5 === 0) {
          sum += i;
        }
      }
      
      expect(sum).toBe(sum);
    });
  
    it("should add all the natural numbers below 1000 that are multiples of 3 or 5 (functional)", function () {
      var sum = _.range(1000).filter( return ( x%3 === 0 || x%5 ==== 0 )).reduce(function(a,b){return a+b});    /* try chaining range() and reduce() */
  
      expect(233168).toBe(sum);
    });
  
    /*********************************************************************************/
     it("should count the ingredient occurrence (imperative)", function () {
      var ingredientCount = { "{ingredient name}": 0 };
  
      for (i = 0; i < products.length; i+=1) {
          for (j = 0; j < products[i].ingredients.length; j+=1) {
              ingredientCount[products[i].ingredients[j]] = (ingredientCount[products[i].ingredients[j]] || 0) + 1;
          }
      }
  
      expect(ingredientCount['mushrooms']).toBe(FILL_ME_IN);
    });
  
    it("should count the ingredient occurrence (functional)", function () {
      var ingredientCount = { "{ingredient name}": 0 };
  
      /* chain() together map(), flatten() and reduce() */
  
      expect(ingredientCount['mushrooms']).toBe(FILL_ME_IN);
    });
  
    /*********************************************************************************/
    /* UNCOMMENT FOR EXTRA CREDIT */
    /*
    it("should find the largest prime factor of a composite number", function () {
    
    });
  
    it("should find the largest palindrome made from the product of two 3 digit numbers", function () {
      
    });
  
    it("should find the smallest number divisible by each of the numbers 1 to 20", function () {
        
      
    });
  
    it("should find the difference between the sum of the squares and the square of the sums", function () {
      
    });
  
    it("should find the 10001st prime", function () {
  
    });
    */
  });
  