JavaScript Quiz

Quiz
•
Special Education
•
Professional Development
•
Medium
Aimfortech Solutions
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which type of JavaScript language is ___
Object-Oriented
Object-Based
Assembly-language
High-level
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What is the purpose of the 'this' keyword in JavaScript?
To refer to the current object
To declare a variable
To create a loop
To import external libraries
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What does the 'typeof' operator in JavaScript return?
The data type of a variable
The value of a variable
The length of a string
The index of an array element
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What is the correct way to comment a single line in JavaScript?
// This is a comment
/* This is a comment */
# This is a comment
%% This is a comment
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What is the purpose of the 'let' keyword in JavaScript?
To declare a block-scoped variable
To refer to the current object
To create a loop
To import external libraries
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What does the 'NaN' value represent in JavaScript?
Not a Number
Null
Undefined
Infinity
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which method is used to add a new element to the end of an array in JavaScript?
push()
pop()
shift()
unshift()
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