CodeYourFuture · Dawit-Dev · Feb 25, 2022 · Feb 25, 2022 · Feb 27, 2022 · Aug 2, 2022
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,7 @@
 console.log("Hello world");
+console.log("Hello world");
+// console.log(Hello);
+
+var greeting = "Hello, I'm learning JavaScript";
+greeting = "Hello world";
+console.log(greeting);
diff --git a/exercises/C-variables/README.md b/exercises/C-variables/README.md
@@ -1,4 +1,4 @@
-When you write code, you'll want to create shortcuts to data values so you can don't have to write out the same value every time.
+When you write code, you'll want to create shortcuts to data values so you don't have to write out the same value every time.
 
 We can use _variable_ to create a reference to a value.
 

diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,8 @@
 // Start by creating a variable `greeting`
+var greeting;
+greeting = "Hello World";
+console.log(greeting);
+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";
 
 console.log(message);
+console.log(typeof (message));
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 name = "Dawit";
+var message = greetingStart + name;
 console.log(message);
+
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,8 @@
 // Start by creating a variable `message`
-
+var name = "Dawit";
+var messageStart = "My name is";
+var messageMiddle = "and my name is";
+var messageEnd = "charactors long";
+var nameLength = name.nameLength;
+var message = messageStart + " " + name + " " + messageMiddle + " " + name.length + " " + messageEnd;
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,7 @@
-const name = " Daniel  ";
-
+var name = "   Dawit     ";
+var messageStart = "My name is";
+var messageMiddle = "and my name is";
+var messageEnd = "characters long";
+var nameLength = name.nameLength;
+var message = messageStart + " " + name.trim() + " " + messageMiddle + " " + name.length + " " + messageEnd;
 console.log(message);
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,12 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var numberOfStudents = 15;
+var student = "Number of students: ";
+var numberOfMentors = 8;
+var mentors = "Number of mentors: ";
+
+var total = numberOfStudents + numberOfMentors;
+var totalOfAll = "Total number of students and mentors: ";
+
+console.log(student + numberOfStudents);
+console.log(mentors + numberOfMentors);
+console.log(totalOfAll + total);
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,8 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+
+let total = numberOfStudents + numberOfMentors
+let studentsPercentage = numberOfStudents / total * 100
+console.log(Math.round(studentsPercentage) + "%")
+let mentorsPercentage = (numberOfMentors * 100) / total
+console.log(Math.round(mentorsPercentage) + "%")
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,5 +1,7 @@
 function halve(number) {
+  var number = 12;
   // complete the function here
+  return number - (number / 2);
 }
 
 var result = halve(12);

diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,7 +1,11 @@
 function triple(number) {
   // complete function here
+  var number = 12;
+    return number = (number * 3);
+
 }
 
 var result = triple(12);
 
 console.log(result);
+
diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
@@ -1,9 +1,11 @@
 // Complete the function so that it takes input parameters
-function multiply() {
+function multiply(a, b) {
   // Calculate the result of the function and return it
+  return result = a * b;
 }
 
 // Assign the result of calling the function the variable `result`
 var result = multiply(3, 4);
 
 console.log(result);
+
diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
@@ -1,5 +1,8 @@
 // Declare your function first
+function divide(a, b) {
+    return result = a / b;
+}
 
-var result = divide(3, 4);
+var result = divide(1.5, 2);
 
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
@@ -1,5 +1,8 @@
 // Write your function here
+function createGreeting(name) {
+  return greeting = `Hello, my name is ${name}`
+}
 
-var greeting = createGreeting("Daniel");
+var greeting = createGreeting("Dawit");
 
 console.log(greeting);
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 passing(a, b) {
+    return sum = a + b;
+}
 
 // Call the function and assign to a variable `sum`
+var sum = passing(13, 124)
 
 console.log(sum);
+
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,5 +1,9 @@
 // Declare your function here
+function createLongGreeting(name, age) {
+    return greeting = "Hello, my name is " + name + "and my age is " + age + "years old";
+}
 
 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 +3,12 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+function mentors(name) {
+    return `HELLO ${name.toUpperCase()}!`;
+}
+console.log(mentors(mentor1))
+console.log(mentors(mentor2))
+console.log(mentors(mentor3))
+console.log(mentors(mentor4))
+console.log(mentors(mentor5))
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;
 }
 
-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";
+
+}
+console.log(introduceMe("Dawit", 50))
 
 function getTotal(a, b) {
-  total = a ++ b;
+  let 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
@@ -1,17 +1,17 @@
 // 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;
 }
+console.log(multiply(2, 5, 6));
 
 /* 
 ===================================================

diff --git a/mandatory/3-function-output.js b/mandatory/3-function-output.js
@@ -2,16 +2,24 @@
 function getRandomNumber() {
   return Math.random() * 10;
 }
-
+ //*
+// The random() method returns a random value that is greater than or equal to 0.0 and less than 1.0.
+//*
 // Add comments to explain what this function does. You're meant to use Google!
 function combine2Words(word1, word2) {
   return word1.concat(word2);
 }
+//*
+// This function will join the two words without space between them.
-// This function will join the two words without space between them.
+// This function will join the two words with a space between them.
-// This function will join the two words without space between them.
+// This function will join the two words with a space between them.
+//*
 
 function concatenate(firstWord, secondWord, thirdWord) {
   // Write the body of this function to concatenate three words together.
   // Look at the test case below to understand what this function is expected to return.
+  return firstWord.concat(" ", secondWord).concat(" ", thirdWord);
 }
+
+console.log(concatenate("Code", "Your","Future"));
 
 /* 
 ===================================================

diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
@@ -5,7 +5,11 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(price) {
+  let salesTax = (price * 20) / 100;
+  let totalPrice = price + salesTax;
+  return totalPrice;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,8 +21,13 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
-
+function addTaxAndFormatCurrency(amount) {
+  // const total = calculateSalesTax(amount);
+  // const formattedTotal = `£${total.toFixed(2)}`;
+  // return formattedTotal;
+  return `£${calculateSalesTax(amount).toFixed(2)}`;
+}
+console.log(addTaxAndFormatCurrency(17.5));
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====