CodeYourFuture · nirmeet-baweja · Dec 5, 2020 · Dec 5, 2020 · Dec 5, 2020 · Dec 6, 2020
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `greeting`
-
+var greeting = "Hello world";
 console.log(greeting);
+console.log(greeting);
+console.log(greeting);
diff --git a/exercises/D-strings/exercise.js b/exercises/D-strings/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `message`
-
+var message = "This is a string";
+var messageType = typeof message;
 console.log(message);
+console.log(messageType);
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `message`
-
-console.log(message);
+var greetingPart1 = "Hello";
+var greetingPart2 = "welcome to the world of programming!";
+var name = "Bob";
+console.log(greetingPart1 + " " + name + ", " + greetingPart2);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,7 @@
 // Start by creating a variable `message`
-
-console.log(message);
+var sentencePart1 = "My name is";
+var name = "Bob";
+var sentencePart2 = "and my name is";
+var nameLength = name.length;
+var sentencePart3 = "characters long.";
+console.log(sentencePart1 + " " + name + " " + sentencePart2 + " " + nameLength + " " + sentencePart3);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,14 @@
+// Code that existed already
 const name = " Daniel  ";
 
-console.log(message);
+// Code written by me
+// Variable initialization
+var trimmedName = name.trim();
+var sentencePart1 = "My name is";
+var sentencePart2 = "and my name is";
+var nameLength = trimmedName.length;
+var sentencePart3 = "characters long.";
+
+// Print the message on console
+console.log(sentencePart1 + " " + trimmedName + " " + sentencePart2 + " " + nameLength + " " + sentencePart3);
+
diff --git a/exercises/G-numbers/README.md b/exercises/G-numbers/README.md
@@ -6,7 +6,7 @@ Unlike strings, numbers do not need to be wrapped in quotes.
 var age = 30;
 ```
 
-You can use mathematical operators to caclulate numbers:
+You can use mathematical operators to calculate numbers:
 
 ```js
 var sum = 10 + 2; // 12
@@ -17,13 +17,13 @@ var difference = 10 - 2; // 8
 
 ## Exercise
 
-* Create two variables `numberOfStudents` and `numberOfMentors`
-* Log a message that displays the total number of students and mentors
+- Create two variables `numberOfStudents` and `numberOfMentors`
+- Log a message that displays the total number of students and mentors
 
 ## Expected result
 
 ```
 Number of students: 15
 Number of mentors: 8
-Total numnber of students and mentors: 23
+Total number of students and mentors: 23
 ```
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,7 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var numberOfStudents = 15;
+var numberOfMentors = 8;
+var total = numberOfStudents + numberOfMentors;
+console.log("Number of students: " + numberOfStudents);
+console.log("Number of mentors: " + numberOfMentors);
+console.log("Total number of students and mentors: " + total);
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,12 @@
+// Variable initialization
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+var total = numberOfStudents + numberOfMentors;
+var percentOfStudents = numberOfStudents / (total) * 100;
+var percentOfMentors = numberOfMentors / (total) * 100;
+
+// Print the message
+console.log(`Percentage students: ${Math.round(percentOfStudents)}%`);
+console.log(`Percentage mentors: ${Math.round(percentOfMentors)}%`);
+
+
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,7 +1,12 @@
 function halve(number) {
-  // complete the function here
+  return number/2;
 }
 
 var result = halve(12);
+console.log(result);
+
+result = halve(23);
+console.log(result);
 
+result = halve(12458798);
 console.log(result);
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,7 +1,7 @@
-function triple(number) {
-  // complete function here
+function triple(number)
+{
+  return 3*number;
 }
 
 var result = triple(12);
-
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
@@ -1,6 +1,6 @@
 // Complete the function so that it takes input parameters
-function multiply() {
-  // Calculate the result of the function and return it
+function multiply(num1, num2) {
+  return num1 * num2;
 }
 
 // Assign the result of calling the function the variable `result`

diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
@@ -1,5 +1,11 @@
-// Declare your function first
+// function declaration
+function divide(num1, num2)
+{
+  return num1/num2;
+}
 
+// function call
 var result = divide(3, 4);
 
+// print the result
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
@@ -1,4 +1,8 @@
-// Write your function here
+// function declaration
+function createGreeting(name) {
+  message = "Hello, my name is " + name;
+  return message;
+}
 
 var greeting = createGreeting("Daniel");
 

diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,10 @@
-// Declare your function first
+// Function declaration
+function add(num1, num2) {
+  return num1 + num2;
+}
 
 // Call the function and assign to a variable `sum`
+sum = add(13, 124);
 
+// Print the result
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,4 +1,8 @@
-// Declare your function here
+// Function declaration
+function createLongGreeting(name, age) {
+  message = "Hello, my name is " + name + " and I'm " + age + " years old";
+  return message;
+}
 
 const greeting = createLongGreeting("Daniel", 30);
 

diff --git a/exercises/L-functions-nested/README.md b/exercises/L-functions-nested/README.md
@@ -9,7 +9,7 @@ function getAgeInDays(age) {
   return age * 365;
 }
 
-function createCreeting(name, age) {
+function createGreeting(name, age) {
   var ageInDays = getAgeInDays(age);
   var message =
     "My Name is " + name + " and I was born over " + ageInDays + " days ago!";

diff --git a/exercises/L-functions-nested/exercise.js b/exercises/L-functions-nested/exercise.js
@@ -1,5 +1,21 @@
-var mentor1 = "Daniel";
-var mentor2 = "Irina";
-var mentor3 = "Mimi";
-var mentor4 = "Rob";
-var mentor5 = "Yohannes";
+// function to calculate the percentage
+function percentage(num, total) {
+  return (num / total * 100);
+}
+
+// function to create the message
+function createMessage(memberType, percentage) {
+  message = `Percentage ${memberType}: ${Math.round(percentage)}%`;
+  return message;
+}
+
+// variable initialization
+var numberOfStudents = 15;
+var numberOfMentors = 8;
+var total = numberOfStudents + numberOfMentors;
+var percentOfStudents = percentage(numberOfStudents, total);
+var percentOfMentors = percentage(numberOfMentors, total);
+
+// print the results
+console.log(createMessage("students", percentOfStudents));
+console.log(createMessage("mentors", percentOfMentors));
diff --git a/exercises/L-functions-nested/exercise2.js b/exercises/L-functions-nested/exercise2.js
@@ -0,0 +1,24 @@
+// function to convert a word to uppercase
+function toUpper(word) {
+  return word.toUpperCase();
+}
+
+// function to create the greeting
+function createShoutyGreeting(name) {
+  var greeting = `HELLO ${toUpper(name)}`;
+  return greeting;
+}
+
+// variable initialization
+var mentor1 = "Daniel";
+var mentor2 = "Irina";
+var mentor3 = "Mimi";
+var mentor4 = "Rob";
+var mentor5 = "Yohannes";
+
+// print the results
+console.log(createShoutyGreeting(mentor1));
+console.log(createShoutyGreeting(mentor2));
+console.log(createShoutyGreeting(mentor3));
+console.log(createShoutyGreeting(mentor4));
+console.log(createShoutyGreeting(mentor5));
diff --git a/extra/1-currency-conversion.js b/extra/1-currency-conversion.js
@@ -5,17 +5,21 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD(priceInPound) {
+  return priceInPound * 1.4;
+}
 
 /*
   CURRENCY FORMATTING
   ===================
   The business is now breaking into the Brazilian market
-  Write a new function for converting to the Brazilian real (exchange rate is 5.7 BRL to £)
+  Write a new function for converting to the Brazilian real (exchange rate is 5.643 BRL to £)
   They have also decided that they should add a 1% fee to all foreign transactions, which means you only convert 99% of the £ to BRL.
 */
 
-function convertToBRL() {}
+function convertToBRL(priceInPound) {
+  return priceInPound * 5.643;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.

diff --git a/extra/2-piping.js b/extra/2-piping.js
@@ -16,26 +16,34 @@
   the final result to the variable goodCode
 */
 
-function add() {
-
+function add(num1, num2) {
+    return num1 + num2;
 }
 
-function multiply() {
-
+function multiply(num1, num2) {
+    return num1 * num2;
 }
 
-function format() {
-
+function format(num) {
+ return "£" + num;
 }
 
 const startingValue = 2
 
 // Why can this code be seen as bad practice? Comment your answer.
-let badCode = 
-
-/* BETTER PRACTICE */
+/*
+  This is a bad coding example because it is unreadable and confusing. Reading this bit of code is difficult. Calling a function, within a function call and so on can easily lead to errors.
+*/
+let badCode = format(multiply(add(startingValue, 10), 2));
 
-let goodCode = 
+// BETTER PRACTICE
+/*
+  This is considered a better practice because the complicated task has been broken down into small readable, easy to understand steps.
+*/
+let step1 = add(startingValue, 10);
+let step2 = multiply(step1, 2);
+let finalStep = format(step2);
+let goodCode = finalStep;
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.

diff --git a/extra/3-magic-8-ball.js b/extra/3-magic-8-ball.js
@@ -46,7 +46,19 @@
 // This should log "The ball has shaken!"
 // and return the answer.
 function shakeBall() {
-  //Write your code in here
+
+  // Array containing all the possible answers
+  let possibleAnswers = ["It is certain.", "It is decidedly so.", "Without a doubt.", "Yes - definitely.", "You may rely on it.", "As I see it, yes.", "Most likely.", "Outlook good.", "Yes.", "Signs point to yes.", "Reply hazy, try again.", "Ask again later.", "Better not tell you now.", "Cannot predict now.", "Concentrate and ask again.", "Don't count on it.", "My reply is no.", "My sources say no.", "Outlook not so good.", "Very doubtful."];
+
+  // Generate a random number to chose an answer from array of answers
+  let tempIndex = Math.random()*(possibleAnswers.length - 1);
+
+  // round the value of index to nearest whole number
+  let index = Math.round(tempIndex);
+
+  // log the message and return the randomly selected answer
+  console.log("The ball has shaken!");
+  return possibleAnswers[index];
 }
 
 /* 
@@ -60,6 +72,32 @@ function shakeBall() {
 */
 function checkAnswer(answer) {
   //Write your code in here
+  let result;
+  switch(answer)
+  {
+    case "It is certain." :
+    case "It is decidedly so." :
+    case "Without a doubt." :
+    case "Yes - definitely." :
+    case "You may rely on it." : result = "very positive"; break;
+    case "As I see it, yes." :
+    case "Most likely." :
+    case "Outlook good." :
+    case "Yes." :
+    case "Signs point to yes." : result = "positive"; break;
+    case "Reply hazy, try again." :
+    case "Ask again later." :
+    case "Better not tell you now." :
+    case "Cannot predict now." :
+    case "Concentrate and ask again." : result = "negative"; break;
+    case "Don't count on it." :
+    case "My reply is no." :
+    case "My sources say no." :
+    case "Outlook not so good." :
+    case "Very doubtful." : result = "very negative"; break;
+    default : break;
+  }
+  return result;
 }
 
 /* 
@@ -72,6 +110,7 @@ To run these tests type `node 3-magic-8-ball.js` into your terminal
 ==================================
 */
 
+
 const log = console.log;
 let logged;
 console.log = function () {

diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
@@ -1,16 +1,16 @@
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
+function addNumbers(a, b, c) {
     return a + b + c;
 }
 
-function introduceMe(name, age)
-return "Hello, my name is " + name "and I am " age + "years old";
+function introduceMe(name, age) {
+    return "Hello, my name is " + name + " and I am " + age + " years old";
+}
 
 function getTotal(a, b) {
-    total = a ++ b;
-
-    return "The total is total"
+    total = a + b;
+    return "The total is " + total;
 }
 
 /*