Coursera Answers

Programming with JavaScript Coursera Quiz Answers

August 21, 2023August 22, 2023 by Niyander

In this article i am gone to share Coursera Course: Programming with JavaScript by Meta | Programming with JavaScript Coursera Quiz Answers with you..

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Programming with JavaScript Coursera Quiz Answers

Week 1 Quiz Answers

Knowledge check: Welcome to Programming Quiz Answer

Question 1)
What is the data type of the value “Hello, World”?

string
number
boolean

Question 2)
What is the data type of the value true ?

string
number
boolean

Question 3)
What is the % operator?

The modulus operator
The division operator
The concatenation operator

Question 4)
What happens when you use the + operator on two strings?

They get joined into a single string
You can’t use the + operator on two strings

Question 5)
What is the operator symbol && represent in JavaScript?

The logical OR operator
The logical AND operator
The logical NOT operator

Question 6)
What happens when you use the + operator on a string and a number?

Nothing – you can’t use the + operator on different data types
They get joined together as if both of them were strings

Question 7)
What is the value of i after the following code runs?

var i = 7;
i += 1;
i += 2;

Knowledge check – Conditionals and loops Quiz Answer

Question 1)
Based on the following code, what will print out when the variable i has the value 3 ?

if(i < 5) {
console.log("Hello");
} else {
console.log("Goodbye");
}

Hello
Goodbye

Question 2)
Based on the following code, what will print out when the variable i has the value 1 ?

if(i == 0 && i == 1) {
console.log("Hello");
} else {
console.log("Goodbye");
}

Hello
Goodbye

Question 3)
How many times will the following code print the word ‘Hello’?

for (i = 0; i < 2; i++) {
console.log("Hello");
}

Question 4)
How many times will the following code print the word ‘Hello’?

var i = 0;
while(i < 3) {
console.log("Hello");
i++;
}

Question 5)
How many times will the following code print the word ‘Hello’?

for (i = 0; i < 2; i++) {
for (var j = 0; j < 3; j++) {
console.log("Hello");
}
}

Question 6)
Based on the following code, what will print out when the variable i has the value 7 ?

if(i <= 5) {
console.log("Hello");
} else if(i <= 10) {
console.log("Goodnight");
} else {
console.log("Goodbye");
}

Hello
Goodnight
Goodbye

Question 7)
Based on the following code, what will print out when the variable i has the value 3 ?

switch(i) {
case 1:
console.log("Hello");
break;
case 2:
console.log("Goodnight");
break;
case 3:
console.log("Goodbye");

Hello
Goodnight
Goodbye

Question 8)
Based on the following code, what will print out when the variable i has the value 3 ?

if(i == 2 || i == 3) {
console.log("Hello");
} else {
console.log("Goodbye");
}

Hello
Goodbye

Visit This Link: Module quiz: Introduction to JavaScript Quiz Answers

Week 2 Quiz Answers

Knowledge check: Arrays, Objects and Functions Quiz Answer

Question 1)
What data type is the variable item ?

var item = [];

Boolean
Function
Array

Question 2)
What is the value of result for the following code?

var result = "Hello".indexOf('l');

Question 3)
What is the length of the clothes array after this code runs?

var clothes = [];
clothes.push('gray t-shirt');
clothes.push('green scarf');
clothes.pop();
clothes.push('slippers');
clothes.pop();
clothes.push('boots');
clothes.push('old jeans');

Question 4)
What value is printed out by the following code?

var food = [];
food.push('Chocolate');
food.push('Ice cream');
food.push('Donut');

console.log(food[1])

Chocolate
Ice cream
Donut

Question 5)
How many properties does the dog object have after the following code is run?

var dog = {
color: "brown",
height: 30,
length: 60
};
dog["type"] = "corgi";

Question 6)
In the following function, the variables a and b are known as _______________.

function add(a, b) {
return a + b;
}

Parameters
Return Values

Question 7)
Which of the following are functions of the Math object?

random()
round()
sqrt()
trim()

Knowledge check: Error handling Quiz Answer

Question 1)
What will be printed when the following code runs?

var result = null;
console.log(result);

undefined
null
0

Question 2)
When the following code runs, what will print out?

try {
console.log('Hello');
} catch(err) {
console.log('Goodbye');
}

Hello
Goodbye

Question 3)
If you pass an unsupported data type to a function, what error will be thrown?

RangeError
SyntaxErrror
TypeError

Question 4)
What will print out when the following code runs?

var x;

if(x === null) {
console.log("null");
} else if(x === undefined) {
console.log("undefined");
} else {
console.log("ok");
}

null
undefined
ok

Question 5)
What will print out when the following code runs?

throw new Error();
console.log("Hello");

Hello
Nothing will print out.

Visit This Link: Module quiz: The Building Blocks of a Program Quiz Answers

Week 3 Quiz Answers

Knowledge check: Introduction to Functional Programming Quiz Answer

Question 1)
What will print out when the following code runs?

var globalVar = 77;

function scopeTest() {
var localVar = 88;
}

console.log(localVar);

77
88
null
undefined

Question 2)
Variables declared using const can be reassigned.

true
false

Question 3)
When a function calls itself, this is known as _____________.

Recursion
Looping
Higher-order Function

Question 4)
What will print out when the following code runs?

function meal(animal) {
animal.food = animal.food + 10;
}

var dog = {
food: 10
};
meal(dog);
meal(dog);

Question 5)
What value will print out when the following code runs?

function two() {
return 2;
}

function one() {
return 1;
}

function calculate(initialValue, incrementValue) {

Knowledge check: Introduction to Object-Oriented Programming Quiz Answer

Question 1)
What will print out when the following code runs?

class Cake {
constructor(lyr) {
this.layers = lyr + 1;
}
}

var result = new Cake(1);
console.log(result.layers);

Question 2)
When a class extends another class, this is called ____________.

Inheritance
Extension

Question 3)
What will print out when the following code runs?

class Animal {
constructor(lg) {
this.legs = lg;
}
}

class Dog extends Animal {
constructor() {
super(4);

0
undefined
null
4

Question 4)
What will print out when the following code runs?

class Animal {}

class Cat extends Animal {
constructor() {
super();
this.noise = "meow";
}

undefined
null
“”
meow

Question 5)
What will print out when the following code runs?

class Person {
sayHello() {
console.log("Hello");
}
}

class Friend extends Person {
sayHello() {
console.log("Hey");

Hello
Hey

Knowledge check: Advanced JavaScript Features Quiz Answer

Question 1)
What will print out when the following code runs?

const meal = ["soup", "steak", "ice cream"]
let [starter] = meal;
console.log(starter);

soup
ice cream
steak

Question 2)
The for-of loop works for Object data types.

true
false

Question 3)
What will print out when the following code runs?

let food = "Chocolate";
console.log(`My favourite food is ${food}`);

My favourite food is Chocolate
My favourite food is ${food}

Question 4)
What values will be stored in the set collection after the following code runs?

let set = new Set();
set.add(1);
set.add(2);
set.add(3);
set.add(2);
set.add(1);

1, 2, 3, 2, 1
1, 2, 3

Question 5)
What value will be printed out when the following code runs?

let obj = {
key: 1,
value: 4
};

let output = { ...obj };
output.value -= obj.key;

console.log(output.value);

Question 6)
What value will be printed out when the following code runs?

function count(...basket) {
console.log(basket.length)
}

count(10, 9, 8, 7, 6);

10, 9, 8, 7, 6
1, 2, 3, 4, 5
6
5

Knowledge Check – JavaScript in the browser Quiz Answer

Question 1)
In the following code, the type attribute can be omitted.

<script type="text/javascript">
//Comment
</script>

true
false

Question 2)
What does the document variable return in JavaScript?

console.log(document);

The entire body tag of the webpage in the browser’s memory, as a JavaScript object.
The entire webpage in the browser’s memory, as a JavaScript object.
The HTML code of the downloaded webpage, as a JavaScript string.

Question 3)
What does the following function return?

getElementById('main-heading')

It doesn’t return anything.
All elements that have the class attribute with a value main-heading
The first element that has the id attribute with a value main-heading
The last element that has the id attribute with a value main-heading

Question 4)
After the following code is run, what will happen when the user clicks on a p element in the browser?

document.querySelector('h1').addEventListener('click', 
function() { 
console.log('clicked');
});

‘clicked’ is printed to the console log.
Nothing.

Question 5)
What will be printed when the following code runs?

var result = {
value: 7
};
console.log(JSON.stringify(result));

{}
{value: 7}
{“value”: 7}

Week 3 Programming Assignment

Programming Assignment: Building a functional program Solution

Programming Assignment: Building an object-oriented program Solution

Programming Assignment: Array and object iteration Solution

Visit This Link: Module quiz: Programming Paradigms Quiz Answers

Week 4 Quiz Answers

Knowledge check: Introduction to testing Quiz Answer

Question 1)
What is the correct way to export the timesTwo function as a module so that Jest can use it in testing files?

export module(timesTwo)
module(exported(timesTwo))
document.module.export = timesTwo
module.exports = timesTwo

Question 2)
Testing is a way to verify the expectations you have regarding the behavior of your code.

true
false

Question 3)
Node.js can be used to build multiple types of applications. Select all that apply.

Command line applications
Desktop applications
Web application backends

Question 4)
When the following test executes, what will the test result be?

function add(a, b) {
return a + b;
}

expect(add(10, 5)).toBe(16);

Success.
Fail.

Question 5)
Which of the following is the slowest and most expensive form of testing?

Unit testing
Integration testing
End-to-end testing (e2e)

Question 6)
Mocking allows you to separate the code that you are testing from its related dependencies.

true
false

Week 4 Programming Assignment

Programming Assignment: Writing a Unit Test Solution

Visit This Link: Module quiz: Testing Quiz Answers

Week 5 Quiz Answers

Week 5 Programming Assignment

Programming Assignment: Little Lemon Receipt Maker Solution

Visit This Link: Final graded quiz: Programming with JavaScript Quiz Answers

Niyander Tech

Programming with JavaScript Coursera Quiz Answers

Programming with JavaScript Coursera Quiz Answers

Knowledge check: Welcome to Programming Quiz Answer

Knowledge check – Conditionals and loops Quiz Answer

Knowledge check: Arrays, Objects and Functions Quiz Answer

Knowledge check: Error handling Quiz Answer

Knowledge check: Introduction to Functional Programming Quiz Answer

Knowledge check: Introduction to Object-Oriented Programming Quiz Answer

Knowledge check: Advanced JavaScript Features Quiz Answer

Knowledge Check – JavaScript in the browser Quiz Answer

Knowledge check: Introduction to testing Quiz Answer

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