JS Quiz Full

JS Quiz Full

12th Grade

13 Qs

quiz-placeholder

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JS Quiz Full

JS Quiz Full

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

Raja SK

Used 13+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the correct way to declare a variable in JavaScript?

Using the 'function' keyword followed by the variable name

Using the 'if' keyword followed by the variable name

Using the 'let', 'const', or 'var' keyword followed by the variable name

Using the 'print' keyword followed by the variable name

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you write a single line comment in JavaScript?

#

/*

//

${}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

map() will always return an array

True

False

neither True nor False

Both True and False

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the option which is not an array method

push()

splice()

pop()

None of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you add a new element (5) to an existing array in JavaScript?

array.insert(5)

array.append(5)

array.add(5)

array.push(5)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

let arr = [1,2,3,4]
Find the number of elements in arr

arr.length()

arr.length

length = arr

length(arr)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you access a property of an object in JavaScript?

By using dot notation or bracket notation

By using arrow notation

By using semicolon notation

By using comma notation

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