CodeYourFuture · KhadijaHaji · Nov 21, 2022 · Nov 21, 2022 · Nov 21, 2022 · Nov 21, 2022
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,4 @@
-console.log("Hello world");
+console.log("Hello world. I just started learning JavaScript!");
+console.log("Hello world.");
+console.log("Hi, my name is Khadija.");
+console.log(0)
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `greeting`
-
+let 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`
-
+let message = "This is a string";
+let 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 +1,4 @@
 // Start by creating a variable `message`
-
-console.log(message);
+let greeting = "Hello, my name is ";
+let myName = "Khadija";
+console.log(greeting + myName);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `message`
-
+const name = "Khadija";
+let nameLength = name.length;
+let message = `My name is ${name} and my name is ${nameLength} characters long`;
 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  ";
-
+let nameTrim = name.trim();
+let nameLength = name.length;
+let nameWithoutSpace = "Daniel";
+let nameWithoutSpaceLength = nameWithoutSpace.length;
+let message = `My name is ${nameTrim} and my name is ${nameWithoutSpaceLength} characters long`;
 console.log(message);
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`
+let numberOfStudents = 15;
+console.log(numberOfStudents);
+let numberOfMentors = 8;
+console.log(numberOfMentors);
+let total = numberOfMentors + numberOfStudents;
+console.log(total);
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,7 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+let total = numberOfMentors + numberOfStudents;
+let numberOfStudentsPercentage = Math.round(numberOfStudents/total * 100);
+console.log(numberOfStudentsPercentage);
+let numberOfMentorsPercentage = Math.round(numberOfMentors/total * 100);
+console.log(numberOfMentorsPercentage);
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,7 +1,11 @@
 function halve(number) {
   // complete the function here
+  return number / 2;
 }
 
 var result = halve(12);
-
 console.log(result);
+result2 = halve(6);
+console.log(result2);
+result3 = halve(3);
+console.log(result3);
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,5 +1,6 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
 
 var result = triple(12);

diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
@@ -1,9 +1,10 @@
 // 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 a * b;
 }
 
 // Assign the result of calling the function the variable `result`
 var result = multiply(3, 4);
 
-console.log(result);
+console.log(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(a,b){
+    return a / b;
+}
 var result = divide(3, 4);
 
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
@@ -1,4 +1,7 @@
 // Write your function here
+function createGreeting(string){
+    return "Hello, my name is " + string;
+}
 
 var greeting = createGreeting("Daniel");
 

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(a,b){
+    return a + b;
+}
 // Call the function and assign to a variable `sum`
-
+let sum = add(13,124)
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,5 +1,7 @@
 // Declare your function here
-
+function createLongGreeting(a,b){
+    return "Hello, my name is " + a + " and I'm " + b + " 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 +3,16 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+
+function greeting(names){;
+return "HELLO " + names.toUpperCase();
+}
+console.log(greeting(mentor1))
+console.log(greeting(mentor2))
+console.log(greeting(mentor3))
+console.log(greeting(mentor4))
+console.log(greeting(mentor5))
+
+
+
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;
+  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 +1,16 @@
 // 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
@@ -1,16 +1,16 @@
-// Add comments to explain what this function does. You're meant to use Google!
+// The Math.random() function returns a floating-point, pseudo-random number that's greater than or equal to 0 and less than 1, with approximately uniform distribution over that range.
 function getRandomNumber() {
   return Math.random() * 10;
 }
 
-// Add comments to explain what this function does. You're meant to use Google!
+
+// the concat() method is used to merge two or more arrays. This method does not change the existing arrays, but instead returns a new array.
 function combine2Words(word1, word2) {
   return word1.concat(word2);
 }
 
 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} ${secondWord} ${thirdWord}`;
 }
 
 /* 

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) {
+  const tax = 0.2 * price;
+  const priceWithTax = tax + price;
+  return priceWithTax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +21,12 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(price) {
+  const tax = 0.2 * price;
+  const priceWithTax = tax + price;
+  const totalPrice = "£" + priceWithTax.toFixed(2);
+  return totalPrice;
+}
 
 /* 
 ===================================================
@@ -30,9 +39,7 @@ To run the tests for just this one file, type `npm test -- --testPathPattern 4-t
 ===================================================
 */
 
-test("calculateSalesTax for £15", () => {
-  expect(calculateSalesTax(15)).toEqual(18);
-});
+
 
 test("calculateSalesTax for £17.50", () => {
   expect(calculateSalesTax(17.5)).toEqual(21);