JavaScript 1

Question 1

Inside which HTML element do we put the JavaScript?

Accepted Answer

Answer

Answer

<js>

Answer

Question 2

What is the correct JavaScript syntax to change the content of the HTML element below?

This is a demonstration.

Accepted Answer

document.getElementById("demo").innerHTML = "Hello World!";

Answer

document.getElement("p").innerHTML = "Hello World!";

Answer

document.getElementByName("p").innerHTML = "Hello World!";

Answer

#demo.innerHTML = "Hello World!";

Question 3

Where is the correct place to insert a JavaScript?

Accepted Answer

Both the section and the section are correct

Answer

The <body> section

Answer

The <head> section

Question 4

What is the correct syntax for referring to an external script called "xxx.js"?

Accepted Answer

Answer

Answer

Question 5

The external JavaScript file must contain the <script> tag.

Accepted Answer

False

Answer

True

Question 6

How do you write "Hello World" in an alert box?

Accepted Answer

alert("Hello World");

Answer

alertBox("Hello World");

Answer

msg("Hello World");

Answer

msgBox("Hello World");

Question 7

How do you create a function in JavaScript?

Accepted Answer

function myFunction()

Answer

function:myFunction()

Answer

function = myFunction()

Question 8

How do you call a function named "myFunction"?

Accepted Answer

myFunction()

Answer

call function myFunction()

Answer

call myFunction()

Question 9

How to write an IF statement in JavaScript?

Accepted Answer

if (i == 5)

Answer

if i = 5 then

Answer

if i = 5

Answer

if i == 5 then

Question 10

How to write an IF statement for executing some code if "i" is NOT equal to 5?

Accepted Answer

if (i != 5)

Answer

if (i <> 5)

Answer

if i <> 5

Answer

if i =! 5 then

Question 11

How does a WHILE loop start?

Accepted Answer

while (i <= 10)

Answer

while i = 1 to 10

Answer

while (i <= 10; i++)

Question 12

How does a FOR loop start?

Accepted Answer

for (i = 0; i <= 5; i++)

Answer

for i = 1 to 5

Answer

for (i <= 5; i++)

Answer

for (i = 0; i <= 5)

Question 13

How can you add a comment in a JavaScript?

Accepted Answer

//This is a comment

Answer

'This is a comment

Answer

Question 14

How to insert a comment that has more than one line?

Accepted Answer

/*This comment has
more than one line*/

Answer

Answer

//This comment has
more than one line//

Question 15

What is the correct way to write a JavaScript array?

Accepted Answer

var colors = ["red", "green", "blue"]

Answer

var colors = (1:"red", 2:"green", 3:"blue")

Answer

var colors = "red", "green", "blue"

Question 16

How do you round the number 7.25, to the nearest integer?

Accepted Answer

Math.round(7.25)

Answer

Math.rnd(7.25)

Answer

round(7.25)

Answer

rnd(7.25)

Question 17

How do you find the number with the highest value of x and y?

Accepted Answer

Math.max(x, y)

Answer

Math.ceil(x, y)

Answer

top(x, y)

Answer

ceil(x, y)

Question 18

What is the correct JavaScript syntax for opening a new window called "w2" ?

Accepted Answer

w2 = window.open("http://www.w3schools.com");

Answer

w2 = window.new("http://www.w3schools.com");

Question 19

JavaScript is the same as Java.

Accepted Answer

False

Answer

True

Question 20

How can you detect the client's browser name?

Accepted Answer

navigator.appName

Answer

client.navName

Answer

browser.name

Question 21

Which event occurs when the user clicks on an HTML element?

Accepted Answer

onclick

Answer

onchange

Answer

onmouseclick

Answer

onmouseover

Question 22

How do you declare a JavaScript variable?

Accepted Answer

var carName;

Answer

v carName;

Answer

variable carName;

Question 23

Which operator is used to assign a value to a variable?

Accepted Answer

=

Answer

-

Answer

*

Answer

X

Question 24

What will the following code return: Boolean(10 > 9)

Accepted Answer

true

Answer

NaN

Answer

false

Question 25

Is JavaScript case-sensitive?

Accepted Answer

Yes

Answer

No

JavaScript 1

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