CodeYourFuture · Mohammadrezanafar · Aug 25, 2022 · Aug 26, 2022 · Aug 26, 2022 · Aug 26, 2022
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);
diff --git a/exercises/D-strings/exercise.js b/exercises/D-strings/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
+var message ="this is string";
 
-console.log(message);
+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`
-
+var messageStart = "Hello my name is ";
+var name ="Mamad";
+var message = messageStart + name ;
 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 ="Mohammadreza";
+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  ";
-
-console.log(message);
+const name = " Mohammadreza  ";
+var nameLowerCase = name.toLowerCase();
+console.log(nameLowerCase);
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,5 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+ var NumberofStudents = 15;
+ var NumberOfMentors = 8;
+ totalNumberOfStudentsAndMentors= ( NumberofStudents + NumberOfMentors);
+ console.log ( totalNumberOfStudentsAndMentors);
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,9 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+var wholeNumber = numberOfStudents + numberOfMentors;
+
+var studentPercentage = Math.round(numberOfStudents*100/wholeNumber);
+console.log("Percentage students: " + studentPercentage + "%");
+
+var mentorsPercentage = Math.round(numberOfMentors*100/wholeNumber);
+console.log("Percentage mentors: " + mentorsPercentage + "%");
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,5 +1,7 @@
 function halve(number) {
   // complete the function here
+  return number / 2;
+
 }
 
 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(a,b) {
+ return a * b;// 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(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
@@ -1,5 +1,7 @@
 // Write your function here
-
+function createGreeting(name){
+ return " Hello, My name is " + (name); 
+}
 var greeting = 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 sum(a , b){
+    return a + b;
+}
 // Call the function and assign to a variable `sum`
-
+var sum = 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 am "+ 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 +3,23 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+function upperCaseName (mentor){
+return mentor.toUpperCase()
+}
+
+function greeting(Hello ,name){ 
+const mentor = upperCaseName(name)
+return Hello.concat( mentor)
+}
+
+const Name1 = greeting("Hello " ,mentor1);
+const Name2 = greeting("Hello " ,mentor2);
+const Name3 = greeting("Hello " ,mentor3);
+const Name4 = greeting("Hello " ,mentor4);
+const Name5 = greeting("Hello " ,mentor5);
+
+console.log (Name1);
+console.log (Name2);
+console.log (Name3);
+console.log (Name4);
+console.log (Name5);
diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
@@ -1,16 +1,17 @@
 // 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;
 }
 
 /* 
@@ -27,7 +28,7 @@ To run the tests for just this one file, type `npm test -- --testPathPattern 1-s
 
 test("addNumbers adds numbers correctly", () => {
   expect(addNumbers(3, 4, 6)).toEqual(13);
-});
+}); 
 
 test("introduceMe function returns the correct string", () => {
   expect(introduceMe("Sonjide", 27)).toEqual(

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();
 }
 
 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
@@ -1,18 +1,24 @@
 // Add comments to explain what this function does. You're meant to use Google!
+//When you want to round numbers in javascript to its nearest integer, you need to use the Math.round () function. Here’s the syntax of the function: Math.round (value) Parameters: the number to be rounded to its nearest integer. Returns: Result after rounding the number passed as a parameter to the function passed as parameter.
 function getRandomNumber() {
   return Math.random() * 10;
 }
 
 // Add comments to explain what this function does. You're meant to use Google!
+//Twice join of two strings in JavaScript Javascript Web Development Front End Technology Object Oriented Programming We are required to write a JavaScript function that takes in two strings; creates and returns a new string with first 2 words of first string, next two words of second string, then first, then second and so on.
 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);
 }
-
+  // Look at the test case below to understand what this function is expected to return.
+
+const firstWord ="I";
+const secondWord ="like";
+const thirdWord ="pizza";
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
@@ -5,7 +5,10 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(productPrice) {
+  let productTax= (productPrice*20) /100 + productPrice;
+  return productTax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +20,9 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(productPrice) {
+  return price="£"+calculateSalesTax(productPrice).toFixed(2);
+}
 
 /* 
 ===================================================