From 9f4523fefb83c24c4c78265bc26f1e5743f9183c Mon Sep 17 00:00:00 2001
From: Gangaprasad Mohite <shanky31@localhost.localdomain>
Date: Tue, 10 Sep 2019 20:13:46 +0530
Subject: [PATCH 1/3] solved exercise

---
 1. objects/1.md | 52 ++++++++++++++++++++++++++++++++++++-------------
 2. array/1.md   | 37 ++++++++++++++---------------------
 2 files changed, 54 insertions(+), 35 deletions(-)

diff --git a/1. objects/1.md b/1. objects/1.md
index 5110277..ea8e8aa 100644
--- a/1. objects/1.md	
+++ b/1. objects/1.md	
@@ -1,73 +1,95 @@
 1. Pick a penguin from Wikipedia's List of Fictional Penguins (https://en.wikipedia.org/wiki/List_of_fictional_penguins) and create an object named `myPenguin` with properties that represent the information listed in each column on that Wikipedia page (for example: the character's name, origin, and author).
 
 ```js
-// your code goes here
+var myPenguin = {
+    name : "Parker",
+    origin : "Love Birds",
+    author : "RObert J. Sherman",
+    sayHello : sayHello() {
+    console.log(`Hello, I'm a penguin and my name is ${myPenguin.name}!`)
+}
+}
 ```
 
 2. Use console.log() to print the penguin's name to the console as part of a welcome message, like "Hello, I'm a penguin and my name is [NAME HERE]!"
 
 ```js
-// your code goes here
+function sayHello(){
+    return(`Hello, I'm a penguin and my name is ${myPenguin.name}!`)
+}
+myPenguin.sayHello
 ```
 
 3. Write another line of code that adds a new property to your penguin called canFly and set it to false.
 
 ```js
-// your code goes here
+myPenguin.canFly = false
 ```
 
 4. Add a method to your penguin called chirp that prints to the console: "CHIRP CHIRP! Is this what penguins sound like?"
 
 ```js
-// your code goes here
+myPenguin ['chirp'] = console.log ("CHIRP CHIRP! Is this what penguins sound like?")
 ```
 
 6. Next, call your penguin's sayHello() method and make sure that it works!
 
 ```js
-// your code goes here
+ myPenguin['sayHello'] = function () {
+        console.log (myPenguin.name)
+    }
 ```
 
 7. Without modifying any of your previous code, change the penguin's name to "Penguin McPenguinFace" and then call your penguin's sayHello() function one more time to make sure it still works.
 
 ```js
-// your code goes here
+myPenguin.name = "Penguin McPenguinFace"
 ```
 
 8. Write another method called fly, and inside that method, use an if / else statement to print "I can fly!" to the console if your penguin's canFly property is true, or "No flying for me!" if its canFly property is false.
 
 ```js
-// your code goes here
+myPenguin['fly'] = function(){
+    if(canFly == true){
+        return " I can fly!" 
+    }else {
+        return "No flying for me!"
+    }
+}
 ```
 
 9. Call your penguin's fly() method and make sure it works!
 
 ```js
-// your code goes here
+myPenguin.fly()
 ```
 
 10. Change the canFly property to true -- again, without modifying any of your previous code!
 
 ```js
-// your code goes here
+myPenguin.canFly = true;
 ```
 
 11. Now call your penguin's fly() method again and make sure it works as expected!
 
 ```js
-// your code goes here
+myPenguin.fly()
 ```
 
 12. Write a for ... in loop to print each key to the console. (Hint: See this page for an example of this special type of loop.)
 
 ```js
-// your code goes here
+for(let i in myPenguin){
+    console.log( i , myPenguin[i])
+}
 ```
 
 13. Write another for ... in loop to print the value of each key to the console. (Hint: You'll need to use bracket notation to access the values this way, instead of dot notation!)
 
 ```js
-// your code goes here
+for(let i in myPenguin){
+    console.log( i , myPenguin[i])
+}
 ```
 
 ## Exercise 2
@@ -83,7 +105,11 @@
 ```
 
 ```js
-// your code goes here
+let favouriteReciepe = {
+    title : "Mole",
+    serve : 2,
+    ingredients : ["Cinnamon", "cumin", "cocoa"]
+}
 ```
 
  15. Keep track of which books you read and which books you want to read!
diff --git a/2. array/1.md b/2. array/1.md
index 1a23aee..6ddc8ed 100644
--- a/2. array/1.md	
+++ b/2. array/1.md	
@@ -1,71 +1,64 @@
 1. Create an array named colors that contains five different names of colors as strings.
 
 ```js
-// your code goes here
-```
-
-2. Access the first color in the array and print it to the console using console.log()
-
-```js
-// your code goes here
-```
-
-3.Now do the same with the third color in the list. (Remember that array indexes start at 0, not at 1!)
-
-```js
-// your code goes here
+var colors = ["green", "purple", "violet", "yellow", "black"]
 ```
 
 4.Write one line of code that changes the value of the last color in the list to "ultraviolet" (overwriting the previous value).
 
 ```js
-// your code goes here
+colors[colors.length - 1 ] = "ultraviolet"
 ```
 
 5. Create a new variable called fourthColor and set it equal to the fourth color in the list.
 
 ```js
-// your code goes here
+let fourthColor = colors[3];
 ```
 
 6.Add another color to the end of the list.
 
 ```js
-// your code goes here
+colors.push("Goldenrod")
 ```
 
 7.Add another color to the beginning of the list.
 
 ```js
-// your code goes here
+colors.unshift("navy")
 ```
 
 8. Print the length of the array to the console with console.log()
 
 ```js
-// your code goes here
+console.log(colors.length)
 ```
 
 9.Remove the last color from the end of list, and then print the length of the array to the console one more time.
 
 ```js
-// your code goes here
+colors.pop();
+console.log(colors.length)
 ```
 
 10.Write a for loop to iterate through every color in the array and print each color's value to the console.
 
 ```js
-// your code goes here
+for(let i = 1; i < colors.length; i++) {
+    console.log(colors[i]);
+}
 ```
 
 11.Copying from that loop you just wrote, modify it to print every color's value and every color's index in this format: 3, purple or 0, blue etc.
 
 ```js
-// your code goes here
+for(let i = 1; i < colors.length; i++) {
+    console.log(i, colors[i]);
+}
 ```
 
 12.Create a variable named lastColor that will always point to the last element of the colors array, no matter how many colors are in the list. (Hint: make use of the array's length property for this!)
 
 ```js
-// your code goes here
+let lastColor = colors.length - 1
 ```
\ No newline at end of file

From 1a1fb1f09925852b315f836548ff5fd2acf680e8 Mon Sep 17 00:00:00 2001
From: Gangaprasad Mohite <shanky31@localhost.localdomain>
Date: Sun, 15 Sep 2019 21:03:36 +0530
Subject: [PATCH 2/3] solved copy vs reference

---
 3. copy-vs-reference/index.js | 40 +++++++++++++++++++++++++++++++++--
 1 file changed, 38 insertions(+), 2 deletions(-)

diff --git a/3. copy-vs-reference/index.js b/3. copy-vs-reference/index.js
index f4efbd0..06ff5ce 100644
--- a/3. copy-vs-reference/index.js	
+++ b/3. copy-vs-reference/index.js	
@@ -5,6 +5,11 @@ var y = "abc";
 var a = x;
 var b = y;
 
+x= 10
+y= "abc"
+a= 10
+b= "abc"
+
 // Value of x, y, a, b
 var x = 10;
 var y = "abc";
@@ -13,29 +18,44 @@ var b = y;
 a = 5;
 b = "def";
 
+x = 10
+y = "abc"
+a = 5
+b = "def"
+
 // Value of arr & arrCopy
 var arr = [1];
 var arrCopy = arr;
 arr.push(2);
 
+arr = [1,2]
+arrCopy = [1, 2]
+
+
 // Value of obj
 var obj = { name: "ryan" };
 obj = { surname: "florance" };
 
+obj = {surname: "florance"}
+
 // What's the output.
 var arr = ["Hi"];
 var arr2 = arr;
 console.log(arr === arr2);
 
+true
+
 // What's the output.
 var arr1 = ["Hi!"];
 var arr2 = ["Hi!"];
 console.log(arr1 === arr2);
 console.log(arr == arr2);
 
+false
+
 //What's the output
 console.log([10] === [10]);
-
+false
 // What's the output?
 
 function personDetails(person) {
@@ -55,6 +75,10 @@ var personObj2 = personDetails(personObj1);
 console.log(personObj1); // -> ?
 console.log(personObj2); // -> ?
 
+{name: "Alex", age: 25}
+{name: "John", age: 50}
+
+
 // Guess the output
 var oldArray = [];
 var object = {};
@@ -62,6 +86,8 @@ object.newArray = oldArray;
 oldArray.push(10);
 console.log(object.newArray === oldArray);
 
+true
+
 // Guess the output
 var a = 5;
 var b = a;
@@ -69,6 +95,9 @@ a = 10;
 console.log(a);
 console.log(b);
 
+10 
+5
+
 // What's the output?
 var a = {};
 var b = a;
@@ -76,6 +105,9 @@ a.a = 1;
 console.log(a);
 console.log(b);
 
+{a: 1}
+{a: 1}
+
 // What's the output.
 var a = [];
 var b = a;
@@ -84,6 +116,10 @@ console.log(a); // [1]
 console.log(b); // [1]
 console.log(a === b);
 
+[1]
+[1]
+true
+
 // Clone the object person in clone
 var person = {
   name: "Mark",
@@ -94,4 +130,4 @@ var person = {
   }
 };
 
-var clone = {};
+var clone = {person};

From c324f65a002027d666cd5d7f506d5db0e6e2642c Mon Sep 17 00:00:00 2001
From: Gangaprasad Mohite <shanky31@localhost.localdomain>
Date: Sun, 15 Sep 2019 21:20:33 +0530
Subject: [PATCH 3/3] finished js-array-objects

---
 4. array-and-objects/01/main.js | 33 +++++++++++++
 4. array-and-objects/02/main.js | 84 +++++++++++++++++++++++++++++++++
 4. array-and-objects/03/main.js | 31 ++++++++++++
 3 files changed, 148 insertions(+)

diff --git a/4. array-and-objects/01/main.js b/4. array-and-objects/01/main.js
index e69de29..296985a 100644
--- a/4. array-and-objects/01/main.js	
+++ b/4. array-and-objects/01/main.js	
@@ -0,0 +1,33 @@
+var myPenguin = {
+    name : "Humboldt",
+    origin : "Penguin Island",
+    author : "Kugane Maruyama",
+}
+
+// 1
+myPenguin.favoriteFoods = ["Cookies", "Pinapple", "Strawberry"];
+
+// 2
+var secondFavFood = myPenguin.favoriteFoods[1];
+console.log(secondFavFood);
+
+// 3
+var firstFavFood = myPenguin.favoriteFoods[0];
+
+// 4
+myPenguin.favoriteFoods.push("Chocolates");
+
+// 5
+var len = myPenguin.favoriteFoods.length;
+console.log(len);
+
+// 6
+myPenguin.favoriteFoods[len - 1] = "Litchi";
+
+// 7 
+var lastFavFood = myPenguin.favoriteFoods[len - 1];
+
+// 8
+for (var i = 0; i < len; i++) {
+    console.log(myPenguin.favoriteFoods[i]);
+}
\ No newline at end of file
diff --git a/4. array-and-objects/02/main.js b/4. array-and-objects/02/main.js
index e69de29..a04dde6 100644
--- a/4. array-and-objects/02/main.js	
+++ b/4. array-and-objects/02/main.js	
@@ -0,0 +1,84 @@
+var gunter = {
+    name: "Gunter",
+    origin: "Adventure Time",
+    canFly: false,
+    sayHello: function () {
+      console.log("QUACK!!!");
+    }
+  };
+  
+  var ramon = {
+    name: "Ramón",
+    origin: "Happy Feet",
+    canFly: true,
+    sayHello: function () {
+      console.log("Estoy encantado de conocerle.");
+    }
+  };
+  
+  var fred = {
+    name: "Fred",
+    origin: "Sitting Ducks",
+    canFly: false,
+    sayHello: function () {
+      console.log("Hi there!");
+    }
+  };
+
+  // 1
+  var penguins = [gunter, ramon, fred];
+
+  // 2
+  var firstPenguin = penguins[0];
+  console.log(firstPenguin);
+
+  // 3
+  var secondPenguin = penguins[1];
+
+  // 4
+  var len = penguins.length;
+  var lastPenguin = penguins[len - 1];
+  console.log(lastPenguin);
+
+  // 5
+  var myPenguin = {
+    name : "Humboldt",
+    origin : "Penguin Island",
+    author : "Kugane Maruyama",
+  }
+
+  penguins.push(myPenguin);
+
+  // 6
+  console.log(len);
+
+  // 7
+  penguins[0].canFly = true;
+
+  // 8
+  penguins[0].sayHello();
+
+  // 9
+  for (var i = 0; i < len; i++) {
+      var name = penguins[i].name;
+      console.log(name);
+  }
+
+  // 10
+  for (var i = 0; i < len; i++) {
+    var hello = penguins[i].sayHello();
+    console.log(hello);
+  }
+
+  // 11
+  for (var i = 0; i < len; i++) {
+    penguins[i].numberOfFeets = 2;
+  }
+
+  // 12
+  for (var i = 0; i < len; i++) {
+    var fly = penguins[i].canFly;
+    if (fly) {
+        console.log(`${penguins[i].name} can fly!`);
+    }
+  }
diff --git a/4. array-and-objects/03/main.js b/4. array-and-objects/03/main.js
index e69de29..50a4f9d 100644
--- a/4. array-and-objects/03/main.js	
+++ b/4. array-and-objects/03/main.js	
@@ -0,0 +1,31 @@
+var myPenguin = {
+    name : "Humboldt",
+    origin : "Penguin Island",
+    author : "Kugane Maruyama",
+}
+
+// 1
+myPenguin.outfit = {
+    hat : "Fedora",
+    shirt : "T-shrt",
+    pants : "Jeans",
+    shoes : "Under Armour",
+};
+
+// 2
+var penguinsHatType = myPenguin.outfit.hat;
+console.log(penguinsHatType);
+
+// 3
+myPenguin.outfit.accessory = "Sunglasses";
+
+// 4
+myPenguin.outfit.hat = "Fedora";
+
+// 5
+delete myPenguin.outfit.pants;
+
+// 6
+for (var i in myPenguin.outfit) {
+    console.log(i);
+}
\ No newline at end of file