CodeYourFuture · Mohamed-Abdalla-1 · Nov 20, 2022 · Nov 22, 2022 · Nov 22, 2022 · Nov 24, 2022
diff --git a/.vscode/launch.json b/.vscode/launch.json
@@ -0,0 +1,17 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}/exercises/E-strings-concatenation/exercise.js"
+        }
+    ]
+}
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");
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
@@ -1,3 +1,7 @@
 // Start by creating a variable `greeting`
 
+const 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`
+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 +1,9 @@
 // Start by creating a variable `message`
 
+let greeting="Hello, my name is";
+
+let name="Mohamed";
+
+let message=`${greeting} ${name}`
+
 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`
 
-console.log(message);
+let name="Mohamed";
+let nameLength = name.length;
+
+console.log(nameLength);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,10 @@
 const name = " Daniel  ";
 
+
+let greeting = "Hello, my name is";
+
+
+let message = `${greeting} ${name.trim()} and my name is ${name.trim().length} characters long`;
+
+
 console.log(message);
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
@@ -1 +1,12 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+let numberOfStudents = 73;
+let numberOfMentors = 17;
+let totalNumber = numberOfMentors + numberOfStudents;
+
+console.log(`Number of students: ${numberOfStudents}`)
+console.log(`Number of mentors: ${numberOfMentors}`);
+console.log(`Total number of students and mentors: ${totalNumber}`);
+
+
+
+
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
@@ -1,2 +1,11 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+
+let totalNumber = numberOfMentors + numberOfStudents;
+
+let percentageStudents = Math.round(numberOfStudents / totalNumber * 100);
+let percentageMentors = Math.round(numberOfMentors / totalNumber * 100);
+
+console.log(`Percentage students: ${percentageStudents}%`);
+
+console.log(`Percentage mentors: ${percentageMentors}%`)
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
@@ -1,7 +1,9 @@
 function halve(number) {
   // complete the function here
+  let result =number/2;
+  return result;
 }
 
-var result = halve(12);
+var result = halve(13);
 
 console.log(result);
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
@@ -1,7 +1,9 @@
 function triple(number) {
   // complete function here
+  let result = number*3;
+  return result;
 }
 
-var result = triple(12);
+var result = triple(10);
 
 console.log(result);
diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
@@ -1,6 +1,8 @@
 // Complete the function so that it takes input parameters
-function multiply() {
+function multiply(a,b) {
   // Calculate the result of the function and return it
+  let result = a * b;
+  return result;
 }
 
 // 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 (a,b) {
+    let result=a/b;
+    return result;
+}
 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 ${name}`;
+}
 
 var greeting = createGreeting("Daniel");
 

diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,10 @@
 // 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 +1,9 @@
 // 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
@@ -1,5 +1,21 @@
+function upperCaseName(name) {
+    return name.toUpperCase();
+}
+
+function greeting(name) {
+  return `HELLO ${upperCaseName(name)}`;
+}
+
+
+
 var mentor1 = "Daniel";
 var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+console.log (greeting(mentor1));
+console.log(greeting(mentor2));
+console.log(greeting(mentor3));
+console.log(greeting(mentor4));
+console.log(greeting(mentor5));
diff --git a/extra/1-currency-conversion.js b/extra/1-currency-conversion.js
@@ -5,7 +5,9 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD(price) {
+  return Math.round(price * 1.4*100)/100;
+}
 
 /*
   CURRENCY CONVERSION
@@ -15,7 +17,9 @@ function convertToUSD() {}
   They have also decided that they should add a 1% fee to all foreign transactions, which means you only convert 99% of the £ to BRL.
 */
 
-function convertToBRL() {}
+function convertToBRL(price) {
+  return Math.round(price*0.99*5.7*100)/100;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.

diff --git a/extra/2-piping.js b/extra/2-piping.js
@@ -16,26 +16,32 @@
   the final result to the variable goodCode
 */
 
-function add() {
-
+function add(a,b) {
+return a+b;
 }
 
-function multiply() {
-
+function multiply(a,b) {
+return a*b;
 }
 
-function format() {
-
+function format(a) {
+  return `£`+a;
 }
 
+
 const startingValue = 2;
 
 // Why can this code be seen as bad practice? Comment your answer.
-let badCode =
+// It's hard to read it.
+let badCode = format(multiply(add(startingValue,10),2));
+
 
 /* BETTER PRACTICE */
+let plusTen = add(startingValue,10);
+let double = multiply(plusTen,2);
+let poundFormat = format(double);
+let goodCode = poundFormat;
 
-let goodCode =
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.

diff --git a/extra/3-magic-8-ball.js b/extra/3-magic-8-ball.js
@@ -1,3 +1,4 @@
+const { toBeOneOf } = require("jest-extended");
 /**
 
   Let's peer into the future using a Magic 8 Ball!
@@ -45,8 +46,34 @@
 
 // This should log "The ball has shaken!"
 // and return the answer.
+let answers = [
+  "It is certain.",
+  "It is decidedly so.",
+  "Without a doubt.",
+  "Yes - definitely.",
+  "You may rely on it.",
+  "As I see it, yes.",
+  "Most likely.",
+  "Outlook good.",
+  "Yes.",
+  "Signs point to yes.",
+  "Reply hazy, try again.",
+  "Ask again later.",
+  "Better not tell you now.",
+  "Cannot predict now.",
+  "Concentrate and ask again.",
+  "Don't count on it.",
+  "My reply is no.",
+  "My sources say no.",
+  "Outlook not so good.",
+  "Very doubtful.",
+];
+let answer = "";
+
 function shakeBall() {
   //Write your code in here
+  console.log("The ball has shaken!");
+  return answer = answers[Math.floor(Math.random() * answers.length)];
 }
 
 /* 
@@ -58,10 +85,47 @@ function shakeBall() {
 
   This function should expect to be called with any value which was returned by the shakeBall function.
 */
+let positiveOrNegative = "";
+
 function checkAnswer(answer) {
   //Write your code in here
+  switch (answer) {
+    case "It is certain.":
+    case "It is decidedly so.":
+    case "Without a doubt.":
+    case "Yes - definitely.":
+    case "You may rely on it.":
+      positiveOrNegative = "very positive";
+      break;
+    case "As I see it, yes.":
+    case "Most likely.":
+    case "Outlook good.":
+    case "Yes.":
+    case "Signs point to yes.":
+      positiveOrNegative = "positive";
+      break;
+    case "Reply hazy, try again.":
+    case "Ask again later.":
+    case "Better not tell you now.":
+    case "Cannot predict now.":
+    case "Concentrate and ask again.":
+      positiveOrNegative = "negative";
+      break;
+    case "Don't count on it.":
+    case "My reply is no.":
+    case "My sources say no.":
+    case "Outlook not so good.":
+    case "Very doubtful.":
+      positiveOrNegative = "very negative";
+      break;
+  }
+  return positiveOrNegative;
 }
 
+// shakeBall();
+// console.log(answer);
+// checkAnswer("Very doubtful.");
+// console.log(positiveOrNegative);
 /* 
 ==================================
 ======= TESTS - DO NOT MODIFY =====
@@ -101,7 +165,9 @@ test("magic 8 ball returns different values each time", () => {
     );
   }
 
-  let seenPositivities = new Set(Array.from(seenAnswers.values()).map(checkAnswer));
+  let seenPositivities = new Set(
+    Array.from(seenAnswers.values()).map(checkAnswer)
+  );
   if (seenPositivities.size < 2) {
     throw Error(
       "Expected to random answers with different positivities each time shakeBall was called, but always got the same one"

diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
@@ -1,18 +1,21 @@
 // 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;
+  let total = a + b;
 
-  return "The total is total";
+  return "The total is " + total;
 }
 
+
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

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;
 }
 
 /*
Original file line number	Diff line number	Diff line change
		@@ -1 +1,3 @@
		console.log("Hello world");

		console.log ("Hello");