CodeYourFuture · Pezhman-Azizi · Aug 11, 2021 · Aug 12, 2021 · tenzyns · Aug 13, 2021
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,12 @@
+
+
 console.log("Hello world");
+console.log("Hello world. I am learning programming and it is so much fun");
+console.log("I have been exercising Java Script and we are in week 1.");
+console.log("I am looking forward to learn more and more.");
+
+//If I get rid of the quotation mark, I face a syntax error and following codes wont operate.
+
+console.log(123);
+
+//After fixing the quotation mark from the previous console.log, and console.log a number a number will appear in the terminal in yellow.
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,7 @@
 // Start by creating a variable `greeting`
-
+var greeting = "Hello World";
+console.log(greeting);
 console.log(greeting);
+console.log(greeting);
+
+// all three results are shown as expected
diff --git a/exercises/D-strings/README.md b/exercises/D-strings/README.md
@@ -1,6 +1,6 @@
 In programming there are different _types of_ data. You've used one data type already: **string**.
 
-Computers recognise strings as a sequence of characters but to humans, strings are simply lines of text.
+Computers recognize strings as a sequence of characters but to humans, strings are simply lines of text.
 
 ```js
 var message = "This is a string";

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. ";
 console.log(message);
+var typeOfMessage = typeof message;
+console.log(typeOfMessage);
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
+var greetingStart = " Hello, my name is ";
+var myName = "Pezhman";
+var message = greetingStart + myName;
 
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,13 @@
 // Start by creating a variable `message`
 
+// EXERCISE ONE:
+
+var myName = "Pezhman";
+var myNameLength = myName.length;
+var message =
+  "My name is " +
+  myName +
+  " and my name is " +
+  myNameLength +
+  " characters long.";
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,21 @@
-const name = " Daniel  ";
+const myName = " Daniel  ";
+// first I wanted to know the length of the given name with space inside quotation mark
+const nameLength = myName.length;
+console.log(nameLength); //9
+
+// I wanna use the .trim function to get rid of the unwanted space
+const correctedName = myName.trim();
+const correctedNameLength = correctedName.length;
+
+console.log(correctedNameLength); //7
+
+//Now I type the message
+
+const message =
+  "My name is" +
+  myName +
+  "and my name is " +
+  correctedNameLength +
+  " characters long.";
 
 console.log(message);
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

diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,10 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+let numberOfStudents = 15;
+let numberOfMentors = 8;
+let total = numberOfStudents + numberOfMentors;
+
+let percentageOfStudents = numberOfStudents / total;
+let percentageOfMentors = numberOfMentors / total;
+
+console.log(percentageOfStudents);
+console.log(percentageOfMentors);
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,23 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+var total = numberOfStudents + numberOfMentors;
+
+//percentage before rounding up and showing them in console
+var percentageOfStudents = (numberOfStudents / total) * 100;
+var percentageOfMentors = (numberOfMentors / total) * 100;
+
+console.log(percentageOfStudents);
+console.log(percentageOfMentors);
+
+//Rounding up percentages and showing them on console
+var roundPercStudents = Math.round(percentageOfStudents);
+var roundPercMentors = Math.round(percentageOfMentors);
+console.log(roundPercStudents);
+console.log(roundPercMentors);
+
+//Declaring sentences by a string variable and showing them to the console
+const studentResult = "Percentage of students is: " + roundPercStudents;
+const mentorsResult = "Percentage of mentors is: " + roundPercMentors;
+
+console.log(studentResult);
+console.log(mentorsResult);
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,5 +1,5 @@
 function halve(number) {
-  // complete the function here
+  return number / 2; // complete the function here
 }
 
 var result = halve(12);

diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,5 +1,5 @@
 function triple(number) {
-  // complete function here
+  return number * 3; // complete function here
 }
 
 var result = triple(12);

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; // Calculate the result of the function and return it
 }
 
 // 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 +1,7 @@
 // Declare your function first
-
+function divide(num1, num2) {
+  return num1 / num2;
+}
 var result = divide(3, 4);
 
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
@@ -1,5 +1,7 @@
 // Write your function here
-
-var greeting = createGreeting("Daniel");
+function createGreeting(name) {
+  return name;
+}
+var greeting = "my name is: " + createGreeting("Daniel");
 
 console.log(greeting);
diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,7 @@
 // Declare your function first
+function add(num1, num2) {
+  return num1 + num2;
+}
 
-// Call the function and assign to a variable `sum`
-
+var sum = add(13, 124); // Call the function and assign to a variable `sum`
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,5 +1,8 @@
 // Declare your function here
-
+function createLongGreeting(name, age) {
+  const greetings = `My name is ${name} and I'm ${age} years old.`;
+  return greetings;
+}
 const greeting = createLongGreeting("Daniel", 30);
 
 console.log(greeting);
diff --git a/exercises/L-functions-nested/exercise.js b/exercises/L-functions-nested/exercise.js
@@ -3,3 +3,23 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+function shouty(mentor) {
+  var upperCaseMentor = mentor.toUpperCase();
+  return `HELLO ${upperCaseMentor}`;
+}
+
+var shoutyGreeting = shouty(mentor1);
+console.log(shoutyGreeting);
+
+var shoutyGreeting = shouty(mentor2);
+console.log(shoutyGreeting);
+
+var shoutyGreeting = shouty(mentor3);
+console.log(shoutyGreeting);
+
+var shoutyGreeting = shouty(mentor4);
+console.log(shoutyGreeting);
+
+var shoutyGreeting = shouty(mentor5);
+console.log(shoutyGreeting);
diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
@@ -1,16 +1,19 @@
 // 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;
 }
+totalNum = addNumbers(1, 2, 3);
+console.log(totalNum);
 
-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;
+  total = a + b;
 
-  return "The total is total";
+  return `The total is ${total}`;
 }
 
 /* 

diff --git a/mandatory/2-logic-error.js b/mandatory/2-logic-error.js
@@ -1,16 +1,15 @@
 // The syntax for this function is valid but it has an error, find it and fix it.
 
 function trimWord(word) {
-  return wordtrim();
+  return word.trim();
 }
 
 function getStringLength(word) {
-  return "word".length();
+  return word.length;
 }
 
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+  return a * b * c;
 }
 
 /* 

diff --git a/mandatory/3-function-output.js b/mandatory/3-function-output.js
@@ -1,6 +1,8 @@
 // Add comments to explain what this function does. You're meant to use Google!
+
+//this function chooses a random number below 1:
 function getRandomNumber() {
-  return Math.random() * 10;
+  return Math.floor(Math.random() * 10);
 }
 
 // Add comments to explain what this function does. You're meant to use Google!

diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
@@ -5,7 +5,12 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(price) {
+  return price * 0.2;
+}
+
+//let percentage = calculateSalesTax(15);
+//console.log(percentage);
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +22,14 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(price) {
+  let result = price + calculateSalesTax(price);
+  let poundFormat = result.toFixed(2);
+  return `£${poundFormat}`;
+}
+
+console.log(calculateSalesTax(17.5));
+console.log(addTaxAndFormatCurrency(17.5));
 
 /* 
 ===================================================