WM4-Seble_Gebrsellasie-Javascript-core-1-week_1

exercises/B-hello-world/exercise.js

@@ -1 +1,9 @@
-console.log("Hello world");
+let greeting = "Hello world";
+console.log(greeting);
+greeting2 = "I just started learning JavaScript!"
+console.log(greeting2);
+greeting3 = "My aim is to understand the bacis"
+console.log(greeting3);
+  const value = 31
+console.log(value)
+

exercises/C-variables/exercise.js

@@ -1,3 +1,8 @@
 // Start by creating a variable `greeting`
-
+ greeting = "Hello word"
 console.log(greeting);
+greeting2 = "Hello word"
+console.log(greeting2)
+greeting3 = "Hello word"
+console.log(greeting3)
+

exercises/D-strings/exercise.js

@@ -1,3 +1,4 @@
 // Start by creating a variable `message`
-
-console.log(message);
+let 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`
-
+let greeting = "Hello, my name is"
+let name = "seble"
+message = greeting + " " + name + ".";
 console.log(message);
+

exercises/F-strings-methods/exercise.js

@@ -1,3 +1,9 @@
 // Start by creating a variable `message`
-
-console.log(message);
+let name = "Seble"
+console.log(name.length) // Logs 5
+console.log(name.toLowerCase()) // "sebel"
+let greeting = "Hello, my name is"
+let myName = "Seble" 
+let message = "and my name is 5 characters long"
+myChar = greeting + " " + myName + " " + message
+console.log(myChar)

exercises/F-strings-methods/exercise2.js

@@ -1,3 +1,10 @@
-const name = " Daniel  ";
+const name = " Seble  ";
+let none = name
+console.log(none.trim())
 
-console.log(message);
+
+let greeting = "Hello, my name is"
+let myName = "Seble"
+let message = "and my name is 5 characters long"
+myChar = greeting + " " + myName + " " + message
+console.log(myChar)

exercises/G-numbers/exercise.js

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

exercises/I-floats/exercise.js

@@ -1,2 +1,7 @@
-var numberOfStudents = 15;
-var numberOfMentors = 8;
+let numberOfStudents = 15;
+let numberOfMentors = 8;
+let total = numberOfStudents + numberOfMentors
+ let studentsPercentage = numberOfStudents / total * 100
+ console.log(Math.round(studentsPercentage) + "%")
+let mentorsPercentage = (numberOfMentors * 100) / total
+ console.log(Math.round(mentorsPercentage) + "%")

exercises/J-functions/exercise.js

@@ -1,4 +1,5 @@
 function halve(number) {
+  return (12 / 2)
   // complete the function here
 }
 

exercises/J-functions/exercise2.js

@@ -1,4 +1,5 @@
 function triple(number) {
+  return (12 * 3)
   // complete function here
 }
 

exercises/K-functions-parameters/exercise.js

@@ -1,9 +1,10 @@
 // Complete the function so that it takes input parameters
 function multiply() {
+  return (3 * 4)
   // Calculate the result of the function and return it
 }
 
 // Assign the result of calling the function the variable `result`
-var result = multiply(3, 4);
+let result = multiply(3, 4);
 
 console.log(result);

exercises/K-functions-parameters/exercise2.js

@@ -1,5 +1,8 @@
 // Declare your function first
+function divide() {
+    return(3 / 4)
+}
 
-var result = divide(3, 4);
+let result = divide(3, 4);
 
 console.log(result);

exercises/K-functions-parameters/exercise3.js

@@ -1,5 +1,8 @@
 // Write your function here
+function createGreeting(name) {
+    return greeting = `Hello, my name is ${name}`
+}
 
-var greeting = createGreeting("Daniel");
+ greeting = createGreeting("seble");
 
 console.log(greeting);

exercises/K-functions-parameters/exercise4.js

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

exercises/K-functions-parameters/exercise5.js

@@ -1,5 +1,10 @@
 // Declare your function here
+function createLongGreeting(myName, greeting, Age) {
+    return("Hello, my name is", myName,"and I'm", Age;)
+
+}
 
+//Hello, my name is Daniel and I'm 30 years old
 const greeting = createLongGreeting("Daniel", 30);
 
-console.log(greeting);
+console.log(greeting)

exercises/L-functions-nested/exercise.js

@@ -3,3 +3,11 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+function mentors(name) {
+    return `HELLO ${name.toUppreCase()}!`
+}
+console.log(mentors(mentor1))
+console.log(mentors(mentor2))
+console.log(mentors(mentor3))
+console.log(mentors(mentor4))
+console.log(mentors(mentor5))

extra/1-currency-conversion.js

@@ -5,7 +5,11 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD() {
+
+
+}
+console.log(convertToUSD)
 
 /*
   CURRENCY CONVERSION

mandatory/1-syntax-errors.js

@@ -1,16 +1,22 @@
 // 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) {
+
+  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";
+
+}
+console.log(introduceMe("dan", 17))
 function getTotal(a, b) {
-  total = a ++ b;
+
+  let total = a + b;
 
-  return "The total is total";
+  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

@@ -1,18 +1,23 @@
 // 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 numbers are 0 or less than 1 so multiplying by 10 and gives as a random number.
 }
+
+console.log(getRandomNumber)
 
 // 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); //When a function is defined, it is typically defined along with one or more parameters. 
+                              //The actual values that are input (or "passed") into a function when it is called are known as arguments.
 }
 
 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 + " " + secondWord + " " + thirdWord
 }
 
+
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====

mandatory/4-tax.js

@@ -5,7 +5,11 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(priceBefore) {
+
+  return priceBefore + (priceBefore * 20) / 100;
+
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +21,10 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(priceBefore) {
+  let priceAfter = calculateSalesTax(priceBefore);
+  return `£${priceAfter.toFixed(2)}`;
+}
 
 /* 
 ===================================================