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3 changes: 2 additions & 1 deletion exercises/B-hello-world/exercise.js
Original file line number Diff line number Diff line change
@@ -1 +1,2 @@
console.log("Hello world");
console.log("Hello World. I just started learning JavaScript!");

4 changes: 3 additions & 1 deletion exercises/C-variables/exercise.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// Start by creating a variable `greeting`

var greeting = "Hello world";
console.log(greeting);
console.log(greeting);
console.log(greeting);
4 changes: 3 additions & 1 deletion exercises/D-strings/exercise.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// Start by creating a variable `message`

var message = "This is a string";
var messageType = typeof message;
console.log(message);
console.log(messageType);
7 changes: 6 additions & 1 deletion exercises/E-strings-concatenation/exercise.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,8 @@
// Start by creating a variable `message`

console.log(message);
var greetingStart = "Hello, my name is ";
var name1 = "Kavita";

var greeting = greetingStart + name1;

console.log(greeting);
11 changes: 10 additions & 1 deletion exercises/F-strings-methods/exercise.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,12 @@
// Start by creating a variable `message`

console.log(message);
var greetingStart = "My name is ";
var name1 = "Daniel ";
var greetingMiddle = "and my name is ";
var nameLength = name1.length;
var greetingEnd = " characters long.";


var greeting = greetingStart + name1 + greetingMiddle + nameLength + greetingEnd;

console.log(greeting); ""
11 changes: 9 additions & 2 deletions exercises/F-strings-methods/exercise2.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,10 @@
const name = " Daniel ";
var greetingStart = " My name is ";
var name1 = "Daniel ";
var greetingMiddle = "and my name is ";
var nameLength = name1.length;
var greetingEnd = " characters long. ";

console.log(message);

var greeting = greetingStart + name1 + greetingMiddle + nameLength + greetingEnd;

console.log(greeting.trim());
2 changes: 1 addition & 1 deletion exercises/G-numbers/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ Unlike strings, numbers do not need to be wrapped in quotes.
var age = 30;
```

You can use mathematical operators to caclulate numbers:
You can use mathematical operators to calculate numbers:

```js
var sum = 10 + 2; // 12
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6 changes: 6 additions & 0 deletions exercises/G-numbers/exercise.js
Original file line number Diff line number Diff line change
@@ -1 +1,7 @@
// Start by creating a variables `numberOfStudents` and `numberOfMentors`
const numberOfMentors = 8
const numberOfStudents = 15
const total = numberOfStudents + numberOfMentors
console.log(`Number of students: ${numberOfStudents}`);
console.log(`Number of mentors: ${numberOfMentors}`);
console.log(`Total number of students and mentors: ${total}`)
10 changes: 8 additions & 2 deletions exercises/I-floats/exercise.js
Original file line number Diff line number Diff line change
@@ -1,2 +1,8 @@
var numberOfStudents = 15;
var numberOfMentors = 8;
var numberOfStudents = 100;
var numberOfMentors = 80;

var numberOfMentorsToday = .65 * 100;
console.log(numberOfMentorsToday);

var numberOfStudents = .35 * 100;
console.log(numberOfStudents);
3 changes: 2 additions & 1 deletion exercises/J-functions/exercise.js
Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
function halve(number) {
// complete the function here
return number / 2;
}

var result = halve(12);

console.log(result);

3 changes: 1 addition & 2 deletions exercises/J-functions/exercise2.js
Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
function triple(number) {
// complete function here
return number * 3;
}

var result = triple(12);

console.log(result);
5 changes: 4 additions & 1 deletion exercises/K-functions-parameters/exercise.js
Original file line number Diff line number Diff line change
@@ -1,9 +1,12 @@
// 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`
var result = multiply(3, 4);

console.log(result);


4 changes: 3 additions & 1 deletion exercises/K-functions-parameters/exercise2.js
Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
// Declare your function first

function divide(num1, num2) {
return num1 / num2;
}
var result = divide(3, 4);

console.log(result);
3 changes: 3 additions & 0 deletions exercises/K-functions-parameters/exercise3.js
Original file line number Diff line number Diff line change
@@ -1,4 +1,7 @@
// Write your function here
function createGreeting(name) {
return "Hello, my name is " + name;
}

var greeting = createGreeting("Daniel");

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6 changes: 4 additions & 2 deletions exercises/K-functions-parameters/exercise4.js
Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
// Declare your function first

// Call the function and assign to a variable `sum`
function add(num1, num2) {
return num1 + num2;
}
var sum = add(13, 124);

console.log(sum);
3 changes: 3 additions & 0 deletions exercises/K-functions-parameters/exercise5.js
Original file line number Diff line number Diff line change
@@ -1,4 +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);

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2 changes: 1 addition & 1 deletion exercises/L-functions-nested/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ function createCreeting(name, age) {
}
```

## Exercise 1
## Exercise 1x

- In `exercise.js` you have been provided with the names of some mentors. Write a program that logs a shouty greeting to each one.
- Your program should include a function that spells their name in uppercase, and a function that creates a shouty greeting.
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15 changes: 15 additions & 0 deletions exercises/L-functions-nested/exercise.js
Original file line number Diff line number Diff line change
@@ -1,5 +1,20 @@
function mentorName(name) {
return name.toUpperCase();
}
function greeting(name) {
var name = mentorName(name);
var message = `HELLO ${name}`;
return message;
}

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));
11 changes: 6 additions & 5 deletions mandatory/1-syntax-errors.js
Original file line number Diff line number Diff line change
@@ -1,16 +1,17 @@
// 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;
total = a + b;

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Do you remember what we need to put at the start of the line when defining or creating a new variable?

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I need to add var or let


return "The total is total";
return `The total is ${total}`;

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Nice use of string interpolation!

}

/*
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8 changes: 4 additions & 4 deletions mandatory/2-logic-error.js
Original file line number Diff line number Diff line change
@@ -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;
var result = a * b * c;
return result;
}

/*
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4 changes: 4 additions & 0 deletions mandatory/3-function-output.js
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@@ -1,16 +1,20 @@
// Add comments to explain what this function does. You're meant to use Google!
function getRandomNumber() {

//returns a random number between 0 (included) and 1 (excluded) and multiple by 10:

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Do you know what kind of random number? Integer? Decimal? Negative or positive?

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It always returns a number lower than 1.

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Could it return -100? Or 0.56?

return Math.random() * 10;
}

// Add comments to explain what this function does. You're meant to use Google!
function combine2Words(word1, word2) {
//method joins two or more strings.
return word1.concat(word2);
}

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);
}

/*
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11 changes: 9 additions & 2 deletions mandatory/4-tax.js
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Expand Up @@ -5,7 +5,10 @@
Sales tax is 20% of the price of the product.
*/

function calculateSalesTax() {}
function calculateSalesTax(price) {
var salesTax = price + price * .20;

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This confused me to begin with as to why you were multiplying the price by 0.2. One of the reasons is that I have no idea what the significance of that number is. In the industry we'd refer to this as a "magic number". It's considered better to treat it as a named constant defined somewhere in your code. Some people/organisations will capitalize shared constants, something like:

const TAX_RATE = 0.2;

function calculateSalesTax(price) {
    let tax = price * TAX_RATE;
    return price + tax;
}

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oh, ok thanks

return salesTax;
}

/*
CURRENCY FORMATTING
Expand All @@ -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(price) {
var total = calculateSalesTax(price);
var roundTotal = total.toFixed(2);
return `£${roundTotal}`;
}

/*
===================================================
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