CodeYourFuture · omarmatter · Jul 1, 2021 · Jul 1, 2021
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,3 @@
 console.log("Hello world");
+console.log("Hello World. I just started learning JavaScript!");
+console.log(2021);
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // 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 +1,5 @@
 // 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 = "Omar";
 
+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 +1,5 @@
 // Start by creating a variable `message`
+var name ='omar';
+var namelength = name.length;
 
-console.log(message);
+console.log(`My name is  ${name} and My name is  ${namelength} characters long`);
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);
+console.log(name.trim());
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,6 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var numberOfStudents = 15;
+var numberOfMentors = 8;
+console.log(`Number of students: ${numberOfStudents}`);
+console.log(`Number of mentors:: ${numberOfMentors}`);
+console.log(`Total numnber of students and mentors: ${numberOfStudents+numberOfMentors}`);
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 sum = numberOfStudents + numberOfMentors;
+var PercentageOfStudents = Math.round((numberOfStudents * 100) / sum);
+var PercentageOfMentors = Math.round((numberOfMentors * 100) / sum);
+console.log(`Percentage student:  ${PercentageOfStudents} %`);
+console.log(`Percentage mentors:  ${PercentageOfMentors} %`);
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,5 +1,6 @@
 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 +1,6 @@
 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
@@ -1,6 +1,7 @@
 // Complete the function so that it takes input parameters
-function multiply() {
-  // Calculate the result of the function and return it
+function multiply(numberOne,numberTow) {
+
+  return numberOne*numberTow
 }
 
 // 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 +1,8 @@
 // Declare your function first
-
+function divide(numberOne,numberTow) {
+
+    return numberOne/numberTow
+  }
 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(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 +1,7 @@
-// Declare your function first
-
-// Call the function and assign to a variable `sum`
+function sum(numberOne,numberTow) {
+
+    return numberOne+numberTow
+  }
+  var sum = 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'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 +3,20 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+
+
+function creatGreeting(greet) {
+    return `hello ${greet}`;
+}
+
+
+function greeting(name){
+    let massage = creatGreeting(name).toUpperCase();
+    return massage;
+}
+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
@@ -1,14 +1,14 @@
 // 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";
 }

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 +1,18 @@
 // Add comments to explain what this function does. You're meant to use Google!
 function getRandomNumber() {
-  return Math.random() * 10;
+  return Math.random() * 10; //  random number between  0 to 10
 }
 
 // Add comments to explain what this function does. You're meant to use Google!
 function combine2Words(word1, word2) {
-  return word1.concat(word2);
+  return word1.concat(word2);  // concatination the string(two word)
 }
 
 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);
+
 }
 
 /* 

diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
@@ -5,7 +5,13 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax() {
+
+  let tax = price * 0.2;
+  let result = tax + price;
+  return result;
+
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +23,13 @@ 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 tax = price * 0.2;
+  let result = tax + price;
+  result = result.toFixed(2);
+  return `£${result}`;
+}
 
 /* 
 ===================================================