CodeYourFuture · Meysam-Arshadi · Nov 23, 2022 · Nov 24, 2022 · nuclear-pasta · Nov 28, 2022
diff --git a/.DS_Store b/.DS_Store
diff --git a/exercises/.DS_Store b/exercises/.DS_Store
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,5 @@
-console.log("Hello world");
+console.log("Hello world. This is a Test");
+console.log("Hjkl;fe c");
+console.log("Hellodsxzwsaz`is a Test");
+console.log("Hello world. Tlllllllllllllllllll");
+console.log(8);
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 my message";
+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 +1,5 @@
 // Start by creating a variable `message`
-
+let greeting = "My name is ";
+let myName = "Meysam Arshadi";
+let message = greeting + myName;
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
-
+let name = "Daniel";
+let nameLength = name.length;
+let message =
+  "My name is " + name + " and it is " + nameLength + " charachter.";
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,5 @@
-const name = " Daniel  ";
-
+const name = "Daniel";
+let nameLength = name.length;
+let message =
+  "My name is " + name + " and it is " + nameLength + " charachter.";
 console.log(message);
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,13 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+let numberOfStudents = 15;
+let studentMessage = "Total No of students: " + numberOfStudents;
+console.log(studentMessage);
+
+let numberOfMentors = 5;
+let mentorsMessage = "Total No of mentors: " + numberOfMentors;
+console.log(mentorsMessage);
+
+let total = numberOfStudents + numberOfMentors;
+let message = "Total number of students and mentors: " + total;
+
+console.log(message);
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 numberOfStudents = 15;
+let numberOfMentors = 8;
+let total = numberOfStudents + numberOfMentors;
+console.log("Total:" + " " + total);
+let studentPercentage = (numberOfStudents * 100) / total;
+console.log("Student percentage:" + " %" + Math.round(studentPercentage));
+let mentorPercentage = (numberOfMentors * 100) / total;
+console.log("Mentor percentage:" + " %" + Math.round(mentorPercentage));
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,7 +1,7 @@
 function halve(number) {
-  // complete the function here
+  return (number = number / 2);
 }
 
-var result = halve(12);
+var result = halve(125698);
 
 console.log(result);
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 = 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() {
-  // Calculate the result of the function and return it
+function logGreeting(name) {
+  let captalizedName = name.toUpperCase();
+  return "HELLO " + captalizedName;
 }
 
-// Assign the result of calling the function the variable `result`
-var result = multiply(3, 4);
-
-console.log(result);
+console.log(logGreeting("Daniel"));
+console.log(logGreeting("Irina"));
+console.log(logGreeting("Mimi"));
+console.log(logGreeting("Rob"));
+console.log(logGreeting("Yohannes"));
diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
@@ -1,4 +1,7 @@
 // Declare your function first
+function divide(a, b) {
+  return (divide = 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 "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
-
+function addNumbers(a, b) {
+  return a + b;
+}
 // Call the function and assign to a variable `sum`
-
+let sum = addNumbers(13, 124);
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,5 +1,16 @@
 // Declare your function here
-
+function createLongGreeting(name, age) {
+  return (
+    "Hello! My name is" +
+    " " +
+    name +
+    "and I am" +
+    " " +
+    age +
+    " " +
+    "year 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 +3,10 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+function logGreeting(name) {
+  let upperCaseName = name.upperCaseName;
+  return "HELLO" + upperCaseName;
+}
+
+console.log(logGreeting);
diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
@@ -1,18 +1,24 @@
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
-  return a + b + c;
+function addNumbers(a, b, c) {
+  let total = a + b + c;
+  return total;
 }
 
-function introduceMe(name, age)
-  return "Hello, my name is " + name "and I am " age + "years old";
+console.log(addNumbers(3, 4, 6));
 
-function getTotal(a, b) {
-  total = a ++ b;
+function introduceMe(name, age) {
+  return "Hello, my name is " + name + " and I am " + age + " years old";
+}
 
-  return "The total is total";
+console.log(introduceMe("Sonjide", 27));
+
+function getTotal(a, b) {
+  total = a + b;
+  return "The total is " + total;
 }
 
+console.log(getTotal(23, 5));
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

diff --git a/mandatory/2-logic-error.js b/mandatory/2-logic-error.js
@@ -1,18 +1,24 @@
 // 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();
 }
 
+console.log(trimWord("   CodeYourFuture "));
+console.log(trimWord(" CodeYourFuture teaches coding     "));
+
 function getStringLength(word) {
-  return "word".length();
+  return word.length;
 }
 
+console.log(getStringLength("Turtles"));
+console.log(getStringLength("A wild sentence appeared!"));
+
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+  return a * b * c;
 }
 
+console.log(multiply(2, 3, 6));
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

diff --git a/mandatory/3-function-output.js b/mandatory/3-function-output.js
@@ -1,18 +1,26 @@
 // Add comments to explain what this function does. You're meant to use Google!
+// My answer: 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 — which you can then scale to your desired range. The implementation selects the initial seed to the random number generation algorithm; it cannot be chosen or reset by the user.
+
 function getRandomNumber() {
   return Math.random() * 10;
 }
 
 // Add comments to explain what this function does. You're meant to use Google!
+// My answer: In JavaScript, concat() is a string method that is used to concatenate strings together. The concat() method appends one or more string values to the calling string and then returns the concatenated result as a new string. Because the concat() method is a method of the String object, it must be invoked through a particular instance of the String class.
+
 function combine2Words(word1, word2) {
   return word1.concat(word2);
 }
 
 function concatenate(firstWord, secondWord, thirdWord) {
+  return firstWord.concat(" ", secondWord.concat(" ", 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.
 }
 
+console.log(concatenate("code", "your", "future"));
+console.log(concatenate("I ", "like ", "pizza"));
+
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
@@ -5,8 +5,14 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
-
+function calculateSalesTax(price) {
+  const itemTax = (price * 20) / 100;
+  const total = itemTax + price;
+  return total;
+}
+console.log(calculateSalesTax(15));
+console.log(calculateSalesTax(17.5));
+console.log(calculateSalesTax(34));
 /*
   CURRENCY FORMATTING
   ===================
@@ -17,7 +23,15 @@ 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 itemTax = (price * 20) / 100;
+  const total = itemTax + price;
+  return "£" + total.toFixed(2);
+}
+
+console.log(addTaxAndFormatCurrency(15));
+console.log(addTaxAndFormatCurrency(17.5));
+console.log(addTaxAndFormatCurrency(34));
 
 /* 
 ===================================================

diff --git a/package.json b/package.json
@@ -14,15 +14,21 @@
     "url": "https://github.com/CodeYourFuture/JavaScript-Core-1-Coursework-Week1/issues"
   },
   "jest": {
-    "setupFilesAfterEnv": ["jest-extended"],
+    "setupFilesAfterEnv": [
+      "jest-extended"
+    ],
     "projects": [
       {
         "displayName": "mandatory",
-        "testMatch": ["<rootDir>/mandatory/*.js"]
+        "testMatch": [
+          "<rootDir>/mandatory/*.js"
+        ]
       },
       {
         "displayName": "extra",
-        "testMatch": ["<rootDir>/extra/*.js"]
+        "testMatch": [
+          "<rootDir>/extra/*.js"
+        ]
       }
     ]
   },