JavaScript-Core-1-Coursework-Week1

exercises/B-hello-world/exercise.js

@@ -1 +1,6 @@
 console.log("Hello world");
+console.log('Hello World. I just started learning JavaScript!');
+console.log(22);
+
+
+

exercises/C-variables/exercise.js

@@ -1,3 +1,6 @@
 // Start by creating a variable `greeting`
-
+var greeting = "Hello world";
+console.log(greeting);
 console.log(greeting);
+console.log(greeting);
+

exercises/D-strings/exercise.js

@@ -1,3 +1,4 @@
 // Start by creating a variable `message`
-
+var message = "This is a string";
 console.log(message);
+console.log(typeof message);

exercises/E-strings-concatenation/exercise.js

@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
+var greetingStart = "Hello, my name is ";
+var name = "Ashjan";
 
-console.log(message);
+var greeting = greetingStart + name;
+console.log(greeting);

exercises/F-strings-methods/exercise.js

@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
-
-console.log(message);
+var name = "Ashjan";
+var namelength = name.length;
+console.log(
+  "My name is " + name + " and My name is " + namelength + "characters long"
+);

exercises/F-strings-methods/exercise2.js

@@ -1,3 +1,3 @@
-const name = " Daniel  ";
+const namee = " Daniel  ";
 
-console.log(message);
+console.log(namee.trim());

exercises/G-numbers/exercise.js

@@ -1 +1,5 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var numberOfStudents = 15;
+var numberOfMentors = 8;
+var sum = numberOfStudents + numberOfMentors;
+console.log(sum);

exercises/I-floats/exercise.js

@@ -1,2 +1,7 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+var sum = numberOfStudents + numberOfMentors;
+var PercentageS = Math.round((numberOfStudents * 100) / sum);
+var PercentageM = Math.round((numberOfMentors * 100) / sum);
+console.log("Percentage student: " + PercentageS + "%");
+console.log("Percentage mentors: " + PercentageM + "%");

exercises/J-functions/exercise.js

@@ -1,5 +1,6 @@
 function halve(number) {
   // complete the function here
+  return number / 2;
 }
 
 var result = halve(12);

exercises/J-functions/exercise2.js

@@ -1,5 +1,6 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
 
 var result = triple(12);

exercises/K-functions-parameters/exercise.js

@@ -1,6 +1,7 @@
 // Complete the function so that it takes input parameters
-function multiply() {
+function multiply(num1,num2) {
   // Calculate the result of the function and return it
+ return num1 * num2;
 }
 
 // Assign the result of calling the function the variable `result`

exercises/K-functions-parameters/exercise2.js

@@ -1,4 +1,7 @@
 // Declare your function first
+function divide(num1,num2){
+    return num1 / num2;
+}
 
 var result = divide(3, 4);
 

exercises/K-functions-parameters/exercise3.js

@@ -1,5 +1,9 @@
 // Write your function here
+function createGreeting(name,city) {
+    return `Hello, my name is ${name} and i am from ${city}`;
 
-var greeting = createGreeting("Daniel");
+}
+
+var greeting = createGreeting("Daniel","nablus");
 
 console.log(greeting);

exercises/K-functions-parameters/exercise4.js

@@ -1,5 +1,10 @@
 // Declare your function first
+function adds(num1, num2) {
+  return num1 + num2;
+
+}
 
 // Call the function and assign to a variable `sum`
-
+let sum = adds(13,124);
 console.log(sum);
+

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);

exercises/L-functions-nested/exercise.js

@@ -3,3 +3,16 @@ 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)); 

mandatory/1-syntax-errors.js

@@ -1,16 +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";
-
+function introduceMe(name, age) {
+  return "Hello, my name is " + name + "and I am " + age + "years old";
+}
 function getTotal(a, b) {
-  total = a ++ b;
-
-  return "The total is total";
+  total = a + b;
+  return "The total is" + total;
 }
 
 /* 

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;
 }
 
 /* 

mandatory/3-function-output.js

@@ -1,16 +1,17 @@
 // Add comments to explain what this function does. You're meant to use Google!
 function getRandomNumber() {
-  return Math.random() * 10;
+  return Math.random() * 10; // get 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);
 }
 
 /* 

mandatory/4-tax.js

@@ -5,7 +5,13 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(price) {
+  let tax = price * 0.2;
+  let result = tax + price;
+  return result;
+}
+
+calculateSalesTax(60);
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +23,12 @@ 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 message = calculateSalesTax(price).toFixed(2);
+return `£${message}`;
+
+}
 
 /* 
 ===================================================