Answer & Solution
Answer: Option C
Solution:
The value 42 is a numeric value, so its data type is Number.
Q
What is the data type of 42 in JavaScript?
Related Questions on Average
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
Which method can be used to convert a string to a number in JavaScript?
A). parseInt()
B). toString()
C). toNumber()
D). parseStr()
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number
What is the output of '5' - 3?
A). 2
B). 2
C). 53
D). Error
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
What is the output of typeof null?
A). null
B). undefined
C). object
D). number
Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
How do you declare a variable with an undefined value?
A). let x;
B). let x = '';
C). let x = 0;
D). let x = null;