CodeYourFuture · MoTaKh · Aug 13, 2021
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,2 @@
 console.log("Hello world");
+console.log ("I just started learning Javascript!")
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,6 @@
 // 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 +1,4 @@
 // Start by creating a variable `message`
-
+var message = "this is a string";
+var messageType = typeof message;
 console.log(message);
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,10 @@
 // Start by creating a variable `message`
+var greetingStart = "Hello, my name is ";
+var name = "Mohamed";
+
+var greeting = greetingStart + name;
+
+
+
+console.log(greeting);
 
-console.log(message);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,4 @@
 // Start by creating a variable `message`
-
-console.log(message);
+var name = "Mohamed Khirallah"
+var nameLength = name.length;
+console.log(nameLength);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,3 @@
-const name = " Daniel  ";
+const name = "Mohamed  ";
 
-console.log(message);
+console.log(name.trim());
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(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;
+
+var studentsPercentage = 15 / 23 * 100;
+console.log(studentsPercentage);
+var mentorsPercentage = 8 / 23 * 100;
+console.log(mentorsPercentage);
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,7 +1,14 @@
 function halve(number) {
   // complete the function here
+  return number / 2;
 }
+halve(12);
+halve(20);
+halve(30);
 
 var result = halve(12);
+var result = halve(20);
+var result = halve(30);
+
 
 console.log(result);
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,7 +1,8 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
-
+triple(12);
 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 +1,7 @@
 // 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`

diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
@@ -1,4 +1,8 @@
 // Declare your function first
+function divide(a , b) {
+    // Calculate the result of the function and return it
+    return a / b;
+  }
 
 var result = divide(3, 4);
 

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(name) {
+    return "Hello, my name is " + name;
+}
 
 var greeting = createGreeting("Daniel");
 

diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,9 @@
 // Declare your function first
 
 // Call the function and assign to a variable `sum`
-
+function adding(num1, num2) {
+    const sum = num1 + num2
+    return sum 
+}
+const sum = adding(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(name, age) {
+    return "Hello, my name is " + name + "and I'm " + 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 +3,14 @@ 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";
+  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
@@ -1,17 +1,22 @@
 // Add comments to explain what this function does. You're meant to use Google!
+// the function return a random number between 0 and 1 multibly 10
 function getRandomNumber() {
   return Math.random() * 10;
 }
 
+
 // Add comments to explain what this function does. You're meant to use Google!
+//the function returns combine the two words together 
 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.concat(" ",secondWord," ", thirdWord);
 }
+concatenate("mohamed", "Talaat", "khirallah");
 
 /* 
 ===================================================

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(productPriceExcludingTheTax) {
+  const Tax = productPriceExcludingTheTax * 20 / 100;
+  const priceWithTax = Tax + productPriceExcludingTheTax;
+  return priceWithTax;
+}
+
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +22,10 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(productPriceExcludingTheTax) {
+  const priceWithTax = calculateSalesTax(productPriceExcludingTheTax)
+  return `£${priceWithTax.toFixed(2)}`;
+}
 
 /* 
 ===================================================
Original file line number	Diff line number	Diff line change
		@@ -1 +1,2 @@
		console.log("Hello world");
		console.log ("I just started learning Javascript!")