CodeYourFuture · LexiisYing · Nov 24, 2022 · Nov 24, 2022 · Nov 24, 2022 · Nov 24, 2022
diff --git a/.DS_Store b/.DS_Store
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
@@ -1 +1,7 @@
 console.log("Hello world");
+console.log("Hello world. I just started learning JavaScript")
+console.log("what happens when i get rid of the quote marks?")
+console.log("syntax error will occur")
+console.log(7)
+console.log('it logs the number')
+
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`
-
-console.log(message);
+let message='lexi was doing the exercises'
+let type=typeof message;
+console.log(message)
+console.log(type);
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,4 @@
 // Start by creating a variable `message`
-
-console.log(message);
+let firstName='lexi '
+let lastName='Xing'
+console.log(firstName + lastName);
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`
+let name ="lexi";
+let nameLength = name.length; 
 
-console.log(message);
+console.log(name + nameLength);
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,4 @@
 const name = " Daniel  ";
+const nameTrim=name.trim();
 
-console.log(message);
+console.log(nameTrim);
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`
+let numberOfStudents=15;
+let numberOfMentors=8;
+let total=numberOfMentors + numberOfStudents;
+console.log(total)
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 total=numberOfMentors + numberOfStudents;
+var numberOfMen=Math.round((numberOfMentors/total)*100);
+let perOfMen=numberOfMen +  `%`;
+var numberOfStu=Math.round((numberOfStudents/total)*100);
+let perOfStu=numberOfStu +  `%`;
+console.log(perOfMen);
+console.log(perOfStu);
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
@@ -1,7 +1,10 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
 
-var result = triple(12);
-
+var result1 = triple(6);
+var result = triple(2);
+console.log(result1);
 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
@@ -1,5 +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 ('nice to meet you ' + 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 summed(a,b) {
+    return a+b
+}
 // Call the function and assign to a variable `sum`
-
+let sum = summed(13 + 24)
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
@@ -1,4 +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);
 

diff --git a/exercises/L-functions-nested/even.js b/exercises/L-functions-nested/even.js
@@ -0,0 +1,60 @@
+
+
+
+/*function moodChecker(mood) {
+    if (mood === "Happy") {
+        return 'good job, you are doing great';
+
+    } else if (mood === "sad") {
+        return "every cloud has a silver lining";
+    } else if (typeof mood === "number") {
+        return "beep beep boop";
+    } else {
+        return "i'm sorry, i'm still learning about feelings"
+    }
+}
+*/
+
+
+// console.log(moodChecker("hmm"));
+
+// && and
+// || or
+// ! not 
+
+function checkUsername(userName, userType) {
+    if (userType === "admin" || userType === "manager") {
+        return "username valid"
+    }
+    else if (userName(0) === userName(0).toUpperCase() && userName.length >5 
+    && userName <10 ) {
+        return "username valid";
+    } else {
+        return "username invalid";
+    }
+}
+
+console.log(checkUsername("lexi", "admin"));
+
+const fruits = ['banana', 'apple', 'strawberry', 'kiwi', 'fig', 'orange'];
+console.log(fruits[2], fruits[3]);
+
+/*function lastTask (tasks) {
+    console.log(tasks[2]);
+    console.log(tasks.length);
+    return `don't forget to ${tasks[2].toUpperCase()}`
+}
+
+
+
+let tasks =['do the dishes', 'take out garbage', 'practice coding'];
+console.log(lastTask(tasks)); */
+
+function randomTask(tasks) {
+
+}
+
+let tasks = ['do the dishes', 'take out garbage', 
+'practice coding', 'clean house'];
+console.log(randomTask['do the dishes', 'take out garbage', 
+'practice coding', 'clean house']);
diff --git a/exercises/L-functions-nested/exercise.js b/exercises/L-functions-nested/exercise.js
@@ -1,5 +1,18 @@
-var mentor1 = "Daniel";
+var mentor1 = "Daniel! ";
 var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+function nameUpperCase (name) {
+    return name.toUpperCase();
+}
+
+function greetingMentors (name) {
+    return `hello ${nameUpperCase(name)}`;
+}
+
+console.log(greetingMentors(mentor1));
+console.log(greetingMentors(mentor2));
+console.log(greetingMentors(mentor3));
+console.log(greetingMentors(mentor4));
+console.log(greetingMentors(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 +1,16 @@
 // 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
@@ -3,14 +3,24 @@ function getRandomNumber() {
   return Math.random() * 10;
 }
 
+// The Math object in JavaScript is a built-in object that has properties and methods for performing mathematical calculations.
+// A common use of the Math object is to create a random number using the random() method.
+
 // Add comments to explain what this function does. You're meant to use Google!
 function combine2Words(word1, word2) {
   return word1.concat(word2);
 }
 
+//The concat() method joins two or more strings.
+
+//The concat() method does not change the existing strings.
+
+//The concat() method returns a new string.
+
 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)
 }
 
 /* 

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(product) {
+  let incSalesTax=product*1.2;
+  return incSalesTax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +20,11 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(currency) {
+  let first=calculateSalesTax(currency);
+  let second=first.toFixed(2);
+  return `£${second}`;
+}
 
 /* 
 ===================================================