initial commit

challenges/classes.js

@@ -1,7 +1,35 @@
 // 1. Copy and paste your prototype in here and refactor into class syntax.
 
+/* ===== Prototype Practice ===== */
+
+/* == Step 1: Base Constructor ==
+  Create a constructor function named CuboidMaker that accepts properties for length, width, and height
+*/
+class CuboidMaker {
+    constructor(cubAttr) {
+         this.length = cubAttr.length;
+        this.width = cubAttr.width;
+        this.height = cubAttr.height;   
+    }
+    volume() {
+        return this.length * this.width * this.height;
+    };
+
+    surfaceArea() {
+        let cube = this.length * this.width +this.length * this.height + this.width * this.height;
+        return cube * 2;
+    };
+}
+
+const cuboid = new CuboidMaker ({
+    length: 4,
+    width: 5,
+    height: 5
+});
+
+
 // Test your volume and surfaceArea methods by uncommenting the logs below:
-// console.log(cuboid.volume()); // 100
-// console.log(cuboid.surfaceArea()); // 130
+console.log(cuboid.volume()); // 100
+console.log(cuboid.surfaceArea()); // 130  
 
 // Stretch Task: Extend the base class CuboidMaker with a sub class called CubeMaker.  Find out the formulas for volume and surface area for cubes and create those methods using the dimension properties from CuboidMaker.  Test your work by logging out your volume and surface area.

challenges/functions.js

@@ -6,26 +6,28 @@
   * The last parameter accepts a callback 
   * In the body of the function return the callback with the two parameters that you created
 */
-
+const consume = (arg1, arg2, cb) => { return cb(arg1, arg2) };
 
 /* Step 2: Create several functions to callback with consume();
   * Create a function named add that returns the sum of two numbers
   * Create a function named multiply that returns the product of two numbers 
   * Create a function named greeting that accepts a first and last name and returns "Hello first-name last-name, nice to meet you!"
 */
-
+const add = (arg1, arg2) => { return arg1 + arg2 };
+const multiply = (arg1, arg2) => { return arg1 * arg2 };
+const greeting = (first_name, last_name) => { return `Hello ${first_name} ${last_name}, nice to meet you!` };
 
 /* Step 3: Check your work by un-commenting the following calls to consume(): */
-// consume(2,2,add); // 4
-// consume(10,16,multiply); // 160
-// consume("Mary","Poppins", greeting); // Hello Mary Poppins, nice to meet you!
+consume(2,2,add); // 4
+consume(10,16,multiply); // 160
+consume("Mary","Poppins", greeting); // Hello Mary Poppins, nice to meet you!
 
 
 // ==== Closures ==== 
 
 // Explain in your own words why `nestedfunction()` can access the variable `internal`.
 
-// Explanation: 
+// Explanation: closure allwes children to access parent properties. nestedFunction is the child, accessing a property from the parent function called myFunction.
 
 
 const external = "I'm outside the function";

challenges/objects-arrays.js

@@ -7,28 +7,47 @@
 */
 
 // tyrannosaurus, carnivorous, 7000kg, 12m, Late Cretaceious
+const tyrannosaurus = {
+  diet: "carnivorous",
+  weight: 7000,
+  length: 12,
+  period: "Late Cretaceious",
+  says: function() {return "RAWERSRARARWERSARARARRRR!"}
+}
 
 // stegosaurus, herbivorous, 2000kg, 9m, Late Jurassic
+const stegosaurus = {
+  diet: "herbivorous",
+  weight: 2000,
+  length: 9,
+  period: "Late Jurassic"
+}
 
 // velociraptor, carnivorous, 15kg, 1.8m, Late Cretaceious
+const velociraptor = {
+  diet: "carnivorous",
+  weight: 15,
+  length: 1.8,
+  period: "Late Cretaceious"
+}
 
 // Using your dinosaur objects, log answers to these questions:
 
 // How much did tyrannosaurus weigh?
-console.log();
+console.log(`${tyrannosaurus.weight}kg`);
 
 // What was the diet of a velociraptor?
-console.log();
+console.log(velociraptor.diet);
 
 // How long was a stegosaurus?
-console.log();
+console.log(`${stegosaurus.length}m`);
 
 // What time period did tyrannosaurus live in?
-console.log();
+console.log(tyrannosaurus.period);
 
 
 // Create a new roar method for the tyrannosaurus.  When called, return "RAWERSRARARWERSARARARRRR!" Log the result.
-console.log();
+console.log(tyrannosaurus.says());
 
 
 // ==== Arrays ====
@@ -47,10 +66,12 @@ const graduates = [{"id":1,"first_name":"Cynde","university":"Missouri Southern
 {"id":10,"first_name":"Hube","university":"Universitat Rovira I Virgili Tarragona","email":"hlethbrig9@foxnews.com"}]
 
 /* Request 1: Create a new array called universities that contains all the univeristies in the graduates array.  
-
 Once you have the new array created, sort the universities alphabetically and log the result. */
+
 const universities = [];
-console.log(universities)
+graduates.map( (uni) => universities.push(uni.university.toUpperCase()) );
+
+console.log(universities.sort())
 
 /* Request 2: Create a new array called contactInfo that contains both first name and email of each student. 
 
@@ -59,36 +80,43 @@ Name email@example.com
 
 Log the result of your new array. */
 const contactInfo = [];
+graduates.map( (data) => contactInfo.push( `${data.first_name} ${data.email}` ) );
+
 console.log(contactInfo);
 
 
 /* Request 3: Find out how many universities have the string "Uni" included in their name. Create a new array called uni that contains them all. Log the result. */
 const uni = [];
+graduates.map( (data) => data.university.includes("Uni") ? uni.push(data.university) : null )
+
 console.log(uni);
 
 
 // ==== ADVANCED Array Methods ====
 
 // Given this zoo data from around the United States, follow the instructions below.  Use the specific array methods in the requests below to solve the problems.
 
-
-zooAnimals = [{"animal_name":"Jackal, asiatic","population":5,"scientific_name":"Canis aureus","state":"Kentucky"},
-{"animal_name":"Screamer, southern","population":1,"scientific_name":"Chauna torquata","state":"Alabama"},
-{"animal_name":"White spoonbill","population":8,"scientific_name":"Platalea leucordia","state":"Georgia"},
-{"animal_name":"White-cheeked pintail","population":1,"scientific_name":"Anas bahamensis","state":"Oregon"},
-{"animal_name":"Black-backed jackal","population":2,"scientific_name":"Canis mesomelas","state":"Washington"},
-{"animal_name":"Brolga crane","population":9,"scientific_name":"Grus rubicundus","state":"New Mexico"},
-{"animal_name":"Common melba finch","population":5,"scientific_name":"Pytilia melba","state":"Pennsylvania"},
-{"animal_name":"Pampa gray fox","population":10,"scientific_name":"Pseudalopex gymnocercus","state":"Connecticut"},
-{"animal_name":"Hawk-eagle, crowned","population":10,"scientific_name":"Spizaetus coronatus","state":"Florida"},
-{"animal_name":"Australian pelican","population":5,"scientific_name":"Pelecanus conspicillatus","state":"West Virginia"}];
+zooAnimals = [
+  {"animal_name":"Jackal, asiatic","population":5,"scientific_name":"Canis aureus","state":"Kentucky"},
+  {"animal_name":"Screamer, southern","population":1,"scientific_name":"Chauna torquata","state":"Alabama"},
+  {"animal_name":"White spoonbill","population":8,"scientific_name":"Platalea leucordia","state":"Georgia"},
+  {"animal_name":"White-cheeked pintail","population":1,"scientific_name":"Anas bahamensis","state":"Oregon"},
+  {"animal_name":"Black-backed jackal","population":2,"scientific_name":"Canis mesomelas","state":"Washington"},
+  {"animal_name":"Brolga crane","population":9,"scientific_name":"Grus rubicundus","state":"New Mexico"},
+  {"animal_name":"Common melba finch","population":5,"scientific_name":"Pytilia melba","state":"Pennsylvania"},
+  {"animal_name":"Pampa gray fox","population":10,"scientific_name":"Pseudalopex gymnocercus","state":"Connecticut"},
+  {"animal_name":"Hawk-eagle, crowned","population":10,"scientific_name":"Spizaetus coronatus","state":"Florida"},
+  {"animal_name":"Australian pelican","population":5,"scientific_name":"Pelecanus conspicillatus","state":"West Virginia"}
+];
 
 /* Request 1: .forEach()
 
 The zoo wants to display both the scientific name and the animal name in front of the habitats.  Return an array with only the animal and scientific names in it.  The individual values in the array should look like this "Name: Jackal, asiatic, Scientific: Canis aureus."
 
 */
 const animalNames = [];
+zooAnimals.forEach(data => { animalNames.push(`Name: ${data.animal_name}, Scientific: ${data.scientific_name}.`); });
+
 console.log(animalNames);
 
 /* Request 2: .map()    
@@ -98,22 +126,27 @@ The zoos need a list of all their animal's names (names only, not scientific) co
 */
 
 const lowerCase = [];
+zooAnimals.map(data => { lowerCase.push(data.animal_name.toLowerCase()); });
+
 console.log(lowerCase); 
 
 /* Request 3: .filter() 
 
-The zoos are concenred about animals with a lower population count. Find out which animals have a population less than 5.
+The zoos are concerned about animals with a lower population count. Find out which animals have a population less than 5.
 
 */
 const largerPopulation = [];
+zooAnimals.map(data => { data.population < 5 ? largerPopulation.push(data.animal_name) : null });
+
 console.log(largerPopulation);
 
 /* Request 4: .reduce() 
 
 The zoos need to know their total animal population across the United States.  Find the total population from all the zoos using the .reduce() method.
 
 */
-const populationTotal = 0;
+let populationTotal = zooAnimals.reduce( (acc, cur) => { return acc + cur.population }, 0 );
+
 console.log(populationTotal);
 
 

challenges/prototypes.js

@@ -5,29 +5,43 @@
 /* == Step 1: Base Constructor ==
   Create a constructor function named CuboidMaker that accepts properties for length, width, and height
 */
-
+function CuboidMaker(cubAttr) {
+  this.length = cubAttr.length;
+  this.width = cubAttr.width;
+  this.height = cubAttr.height;
+}
 
 /* == Step 2: Volume Method ==
   Create a method using CuboidMaker's prototype that returns the volume of a given cuboid's length, width, and height
 
   Formula for cuboid volume: length * width * height
 */
+CuboidMaker.prototype.volume = function() {
+  return this.length * this.width * this.height;
+};
 
 
 /* == Step 3: Surface Area Method ==
   Create another method using CuboidMaker's prototype that returns the surface area of a given cuboid's length, width, and height. 
 
   Formula for cuboid surface area of a cube: 2 * (length * width + length * height + width * height)
 */
-
+CuboidMaker.prototype.surfaceArea = function() {
+  let cube = this.length * this.width +this.length * this.height + this.width * this.height;
+  return cube * 2;
+};
 
 /* == Step 4: Create a new object that uses CuboidMaker ==
   Create a cuboid object that uses the new keyword to use our CuboidMaker constructor
   Add properties and values of length: 4, width: 5, and height: 5 to cuboid.   
 */
 
-// Test your volume and surfaceArea methods by uncommenting the logs below:
-// console.log(cuboid.volume()); // 100
-// console.log(cuboid.surfaceArea()); // 130
-
+const cuboid = new CuboidMaker ({
+  length: 4,
+  width: 5,
+  height: 5
+});
 
+// Test your volume and surfaceArea methods by uncommenting the logs below:
+console.log(cuboid.volume()); // 100
+console.log(cuboid.surfaceArea()); // 130