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
What is the data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list
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
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 null === undefined?
A). 1
B). 0
C). Error
D). NaN
How do you declare a variable with an undefined value?
A). let x;
B). let x = '';
C). let x = 0;
D). let x = null;
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN