prototypes and inheritance homework

index.js

@@ -42,13 +42,24 @@ Airplane.prototype.land = function () {
         + It should return a string with `name` and `age`. Example: "Mary, 50"
 */
 
-function Person() {
-
+function Person(name, age) {
+  this.name = name;
+  this.age = age;
+  this.stomach = [];
+}
+Person.prototype.eat = function(edible) {
+  if(this.stomach.length < 10){
+    this.stomach.push(edible);
+  }
+}
+Person.prototype.poop = function () {
+  this.stomach = [];
+}
+Person.prototype.toString = function(){
+  return `${this.name}, ${this.age}`;
 }
 
-
-
-
+const mary = new Person('Mary', 50)
 
 
 
@@ -68,30 +79,40 @@ function Person() {
         + The `drive` method should return a string "I ran out of fuel at x miles!" x being `odometer`.
 */
 
-function Car() {
-
+function Car(model, milesPerGallon) {
+  this.model = model;
+  this.milesPerGallon = milesPerGallon;
+  this.tank = 0;
+  this.odometer = 0;
+}
+Car.prototype.fill = function(gallons){
+  this.tank = this.tank + gallons;
+}
+Car.prototype.drive = function(distance) {
+    this.tank = this.tank - this.milesPerGallon;
 }
-
-
 /*
   TASK 3
     - Write a Baby constructor subclassing Person.
     - Besides `name` and `age`, Baby takes a third argument to initialize `favoriteToy`.
     - Besides the methods on Person.prototype, babies also have the ability to `.play()`:
         + Should return a string "Playing with x", x being the favorite toy.
 */
-function Baby() {
-
+function Baby(name, age, favoriteToy) {
+ Person.call(this, name, age);
+ this.favoriteToy = favoriteToy
+}
+Baby.prototype = Object.create(Person.prototype)
+Baby.prototype.play = function() {
+  return `Playing with ${this.favoriteToy}`
 }
-
-
 /* 
   TASK 4
   In your own words explain the four principles for the "this" keyword below:
-  1. 
-  2. 
-  3. 
-  4. 
+  1. Window Binding
+  2. Implicit Binding
+  3. Explicity Binding
+  4. New Binding
 */