
JavaScript Fundamentals Quiz
Quiz
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Information Technology (IT)
•
Professional Development
•
Practice Problem
•
Easy
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29 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'let' keyword in JavaScript?
To declare a function
To declare a variable with global scope
To declare a constant variable
To declare a variable with block scope
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a reserved word in JavaScript?
function
variable
constant
define
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the camelCase convention refer to?
Using all uppercase letters
Capitalizing the first letter of each word except the first
Using underscores between words
Writing variables with spaces
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which operator is used for exponentiation in JavaScript?
^^
exp
^
**
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of 'typeof null' in JavaScript?
'object'
'boolean'
'null'
'undefined'
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method converts a string to an integer in JavaScript?
String
parseFloat
Number
parseInt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between '==' and '===' in JavaScript?
'==' checks value only, '===' checks type only
'==' checks value and type, '===' checks value only
'==' checks type only, '===' checks value only
'==' checks value only, '===' checks value and type
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