JavaScript Quiz

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JavaScript Quiz

An MCQ Quiz for JavaScript Interviewers

1 / 30

Which method converts the array to string?

2 / 30

__________ is an event in which the user pushes a keyword key.

3 / 30

What will be the output of the code below?


4 / 30

Js objects are written on

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What is the syntax of function in JS?

6 / 30

Javascript typed array can be used to access ______.

7 / 30

Which generation introduced the const keyword?

8 / 30

For deleting array elements, we should use

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Which of the following is the syntax of the let keyword?

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The ________ method adds new items to an array.

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Javascript is also known as

12 / 30

What will be the output of the code below?


13 / 30

Which is used for debugging

14 / 30

What will be the output of the code below?


15 / 30

In how many ways can we print output in JS?

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Which of the following will print output of 7?

17 / 30

_________ is used to declare variable with block scope & ______ used for global scope.

18 / 30

Which of the following code will provide output 12?

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Which of these is not a JS keyword?

20 / 30

What will be the output of the code below?


21 / 30

The programming instruction in JS is called _________.

22 / 30

Which of the following code will provide output 110?

23 / 30

Can a single error in code stop the whole website rendering?

24 / 30

What will be the output of the code below?


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What is the main feature of JS?

26 / 30

What will be the output of the code below?


27 / 30

JS is case sensitive

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Internal Js means

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What will be the output of the code below?

JS example


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Javascript can be used for

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