Interview Questions For JavaScript
- 1.
Java Script File Has An Extension Of
- A.
.Java
- B.
.Js
- C.
.javascript
- D.
.xml
Correct Answer
B. .Js -
- 2.
The Tag is used To Give Heading To The Table
- A.
Head
- B.
Td
- C.
Th
- D.
Caption
Correct Answer
D. Caption -
- 3.
IsNaN() Evalutes And Argument To Determine if Given Value
- A.
Is Not a Null
- B.
Is Not a Number
- C.
Is Not a New Object
- D.
None Of The Above
Correct Answer
B. Is Not a Number -
- 4.
Function is Used To Parse a String To Int
- A.
Integer.Parse
- B.
Int.Parse
- C.
Parse.Int
- D.
None
Correct Answer
B. Int.Parse -
- 5.
Which Of The Dialog Box Display a Message And a Data Entry Field
- A.
Alert()
- B.
Prompt()
- C.
Confirm()
- D.
Msg()
Correct Answer
B. Prompt() -
- 6.
Event is Used To Check An Empty Text Box
- A.
Onclick()
- B.
OnFocus()
- C.
OnBlur()
- D.
None
Correct Answer
C. OnBlur() -
- 7.
Method Prompt() Contain ........Number of Parameters
- A.
One
- B.
Two
- C.
Three
- D.
Zero
Correct Answer
B. Two -
- 8.
GetMonth() returns The Month as
- A.
Int
- B.
Float
- C.
Char
- D.
String
Correct Answer
A. Int -
- 9.
If Button is clicked .......Event Handler is invoked
- A.
OnSubmit()
- B.
OnLoad()
- C.
IsPostBack()
- D.
Onclick()
Correct Answer
D. Onclick() -
- 10.
A Function Associated With An object is Called
- A.
Function
- B.
Method
- C.
Link
- D.
None
Correct Answer
B. Method -
- 11.
Inside which HTML element do we put the JavaScript?
- A.
Js
- B.
JavaScript
- C.
Script
- D.
Scripting
Correct Answer
B. JavaScript -
- 12.
Which property would you use to redirect visitor to another page?
- A.
Window.location.href
- B.
Document.href
- C.
Java.redirect.url
- D.
Link.redirect.href
Correct Answer
A. Window.location.href -
- 13.
Wich best describe void?
- A.
A method
- B.
A function
- C.
An operator
- D.
A statement
Correct Answer
C. An operator -
- 14.
What is the correct JavaScript syntax to write "Hello World"?
- A.
Response.write("Hello World")
- B.
Document.write("Hello World")
- C.
("Hello World")
- D.
Echo("Hello World")
Correct Answer
B. Document.write("Hello World") -
- 15.
How do you call a function named "myFunction"?
- A.
Call myFunction()
- B.
MyFunction()
- C.
Call function myFunction
Correct Answer
B. MyFunction() -
- 16.
How do you write a conditional statement for executing some statements only if "i" is equal to 5?
- A.
If i==5 then
- B.
If i=5 then
- C.
If (i==5)
- D.
If i=5
Correct Answer
C. If (i==5) -
- 17.
How many different kind of loops are there in JavaScript?
- A.
Two. The "for" loop and the "while" loop
- B.
Four. The "for" loop, the "while" loop, the "do...while" loop, and the "loop...until" loop
- C.
One. The "for" loop
Correct Answer
A. Two. The "for" loop and the "while" loop -
- 18.
How do you write a conditional statement for executing some statements only if "i" is NOT equal to 5?
- A.
If (i 5)
- B.
If (i != 5)
- C.
If =! 5 then
- D.
If 5
Correct Answer
B. If (i != 5) -
- 19.
How does a "for" loop start?
- A.
For (i = 0; i
- B.
For (i = 0; i
- C.
For i = 1 to 5
- D.
For (i
Correct Answer
B. For (i = 0; i -
- 20.
What is the correct way to write a JavaScript array?
- A.
Var txt = new Array("tim","shaq","kobe")
- B.
Var txt = new Array="tim","shaq","kobe"
- C.
Var txt = new Array(1:"tim",2:"shaq",3:"kobe")
Correct Answer
A. Var txt = new Array("tim","shaq","kobe") -
- 21.
Onclick is equivalent to which two events in sequence
- A.
Onmouseover and onmousedown
- B.
Onmousedown and onmouseout
- C.
Onmousedown and onmouseup
- D.
Onmouseup and onmouseout
Correct Answer
C. Onmousedown and onmouseup -
- 22.
You define an array using
- A.
Var myarray = new Array();
- B.
Var myarray = array new;
- C.
Var new Array() = myarray;
- D.
Var new array = myarray;
Correct Answer
A. Var myarray = new Array(); -
- 23.
How do you round the number 8.25, to the nearest whole number?
- A.
Math.rnd(8.25)
- B.
Math.round(8.25)
- C.
Round(8.25)
- D.
Rnd(8.25)
Correct Answer
B. Math.round(8.25) -
- 24.
CHow do you find the largest number of 6 and 8?
- A.
Math.max(6,8)
- B.
Top(6,8)
- C.
Ceil(6,8)
- D.
Math.ceil(6,8)
Correct Answer
A. Math.max(6,8) -
- 25.
How do you find the client's browser name?
- A.
Navigator.appName
- B.
Client.navName
- C.
Browser.name
Correct Answer
A. Navigator.appName -
- 26.
What is the correct JavaScript syntax for opening a new window called "window5" ?
- A.
New("http://www.ex-designz.net","window5")
- B.
Window.open("http://www.ex-designz.net","window5")
- C.
Open.newwindow("http://www.ex-designz.net","window5")
- D.
New.window("http://www.ex-designz.net","window5")
Correct Answer
B. Window.open("http://www.ex-designz.net","window5") -
- 27.
How do you put a message in the browser's status bar?
- A.
Window.status = "put your message here"
- B.
Statusbar = "put your message here"
- C.
Status("put your message here")
- D.
Window.status("put your message here")
Correct Answer
A. Window.status = "put your message here" -
- 28.
Which property would you use to redirect visitor to another page?
- A.
Window.location.href
- B.
Document.href
- C.
Java.redirect.url
- D.
Link.redirect.href
Correct Answer
A. Window.location.href -
- 29.
Wich best describe void?
- A.
A method
- B.
A function
- C.
An operator
- D.
A statement
Correct Answer
C. An operator -
- 30.
What is the correct JavaScript syntax to write "Hello World"?
- A.
Response.write("Hello World")
- B.
Document.write("Hello World")
- C.
("Hello World")
- D.
Echo("Hello World")
Correct Answer
B. Document.write("Hello World") -
- 31.
How do you call a function named "myFunction"?
- A.
Call myFunction()
- B.
MyFunction()
- C.
Call function myFunction
Correct Answer
B. MyFunction() -
- 32.
How do you write a conditional statement for executing some statements only if "i" is equal to 5?
- A.
If i==5 then
- B.
If i=5 then
- C.
If (i==5)
- D.
If i=5
Correct Answer
C. If (i==5) -
- 33.
How many different kind of loops are there in JavaScript?
- A.
Two. The "for" loop and the "while" loop
- B.
Four. The "for" loop, the "while" loop, the "do...while" loop, and the "loop...until" loop
- C.
One. The "for" loop
Correct Answer
A. Two. The "for" loop and the "while" loop -
- 34.
How do you write a conditional statement for executing some statements only if "i" is NOT equal to 5?
- A.
If (i 5)
- B.
If (i != 5)
- C.
If =! 5 then
- D.
If 5
Correct Answer
B. If (i != 5) -
- 35.
How does a "for" loop start?
- A.
For (i = 0; i
- B.
For (i = 0; i
- C.
For i = 1 to 5
- D.
For (i
Correct Answer
B. For (i = 0; i -
- 36.
What is the correct way to write a JavaScript array?
- A.
Var txt = new Array("tim","shaq","kobe")
- B.
Var txt = new Array="tim","shaq","kobe"
- C.
Var txt = new Array(1:"tim",2:"shaq",3:"kobe")
Correct Answer
A. Var txt = new Array("tim","shaq","kobe") -
- 37.
Onclick is equivalent to which two events in sequence
- A.
Onmouseover and onmousedown
- B.
Onmousedown and onmouseout
- C.
Onmousedown and onmouseup
- D.
Onmouseup and onmouseout
Correct Answer
C. Onmousedown and onmouseup -
- 38.
You define an array using
- A.
Var myarray = new Array();
- B.
Var myarray = array new;
- C.
Var new Array() = myarray;
- D.
Var new array = myarray;
Correct Answer
A. Var myarray = new Array(); -
- 39.
How do you round the number 8.25, to the nearest whole number?
- A.
Math.rnd(8.25)
- B.
Math.round(8.25)
- C.
Round(8.25)
- D.
Rnd(8.25)
Correct Answer
B. Math.round(8.25) -
- 40.
CHow do you find the largest number of 6 and 8?
- A.
Math.max(6,8)
- B.
Top(6,8)
- C.
Ceil(6,8)
- D.
Math.ceil(6,8)
Correct Answer
A. Math.max(6,8) -
- 41.
How do you find the client's browser name?
- A.
Navigator.appName
- B.
Client.navName
- C.
Browser.name
Correct Answer
A. Navigator.appName -
- 42.
What is the correct JavaScript syntax for opening a new window called "window5" ?
- A.
New("http://www.ex-designz.net","window5")
- B.
Window.open("http://www.ex-designz.net","window5")
- C.
Open.newwindow("http://www.ex-designz.net","window5")
- D.
New.window("http://www.ex-designz.net","window5")
Correct Answer
B. Window.open("http://www.ex-designz.net","window5") -
- 43.
How do you put a message in the browser's status bar?
- A.
Window.status = "put your message here"
- B.
Statusbar = "put your message here"
- C.
Status("put your message here")
- D.
Window.status("put your message here")
Correct Answer
A. Window.status = "put your message here" -
- 44.
Which property would you use to redirect visitor to another page?
- A.
Window.location.href
- B.
Document.href
- C.
Java.redirect.url
- D.
Link.redirect.href
Correct Answer
A. Window.location.href -
- 45.
Wich best describe void?
- A.
A method
- B.
A function
- C.
An operator
- D.
A statement
Correct Answer
C. An operator -
- 46.
What is the correct JavaScript syntax to write "Hello World"?
- A.
Response.write("Hello World")
- B.
Document.write("Hello World")
- C.
("Hello World")
- D.
Echo("Hello World")
Correct Answer
B. Document.write("Hello World") -
- 47.
How do you call a function named "myFunction"?
- A.
Call myFunction()
- B.
MyFunction()
- C.
Call function myFunction
Correct Answer
B. MyFunction() -
- 48.
How do you write a conditional statement for executing some statements only if "i" is equal to 5?
- A.
If i==5 then
- B.
If i=5 then
- C.
If (i==5)
- D.
If i=5
Correct Answer
C. If (i==5) -
- 49.
How many different kind of loops are there in JavaScript?
- A.
Two. The "for" loop and the "while" loop
- B.
Four. The "for" loop, the "while" loop, the "do...while" loop, and the "loop...until" loop
- C.
One. The "for" loop
Correct Answer
A. Two. The "for" loop and the "while" loop -
- 50.
How do you write a conditional statement for executing some statements only if "i" is NOT equal to 5?
- A.
If (i 5)
- B.
If (i != 5)
- C.
If =! 5 then
- D.
If 5
Correct Answer
B. If (i != 5) -
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Mar 21, 2022Quiz Edited by
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Oct 27, 2017Quiz Created by
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