Answer & Solution
Answer: Option B
Solution:
The - operator converts strings to numbers, so '5' - 3 results in the number 2.
Q
What is the output of '5' - 3?
Related Questions on Average
Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
How do you declare a variable with an undefined value?
A). let x;
B). let x = '';
C). let x = 0;
D). let x = null;
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number
What is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error