JavaScript Online Quiz, javascript Quiz Section 3

1 .

How to write an IF statement in JavaScript?

if i = 5

if (i == 5)

if i = 5 then

if i == 5 then

Correct Answer : Option (B)

if (i == 5)

Show Answer

2 .

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

if (i <> 5)

if i <> 5

if i =! 5 then

if (i != 5)

Correct Answer : Option (D)

if (i != 5)

Show Answer

3 .

How does a WHILE loop start?

while (i <= 10)

while i = 1 to 10

while (i <= 10; i++)

None of the above.

Correct Answer : Option (A)

while (i <= 10)

Show Answer

4 .

How does a FOR loop start?

for i = 1 to 5

for (i <= 5; i++)

for (i = 0; i <= 5)

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

Correct Answer : Option (D)

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

Show Answer

5 .

Which of these is a correct method to create a new array?

var myArray = ();

var myArray = [];

var myArray = {};

var myArray = array();

Correct Answer : Option (B)

var myArray = [];

Show Answer

6 .

How to append a value to an array of Java Script?

arr[arr.length] = value

arr[arr.length+1] = new Arrays()

arr[arr.length-1] = value

arr[arr.length*1] = value

Correct Answer : Option (A)

arr[arr.length] = value

Show Answer

7 .

How to return the first value of this array?
var myArr = [1, 2, 3, 4, 5];

myArr[0];

myArr(1);

myArr[1];

myArr(0);

Correct Answer : Option (A)

myArr[0];

Show Answer

8 .

Which is the correct way to write a JavaScript array?

var txt = new Array(1:"abc",2:"efg",3:"xyz")

var txt = new Array:1=(" abc ")2=("efg")3=("xyz")

var txt = new Array("abc","efg","xyz")

var txt = new Array=" abc ","efg","xyz"

Correct Answer : Option (C)

var txt = new Array("abc","efg","xyz")

Show Answer

9 .

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

onmouseclick

onmouseover

onclick

onchange

Correct Answer : Option (C)

onclick

Show Answer

10 .

Which of the following is the tainted property of a window object in Java Script?

Pathname

Protocol

Defaultstatus

Host

Correct Answer : Option (C)

Defaultstatus

Show Answer

Finish Quiz