Answer & Solution
Answer: Option C
Solution:
Due to a historical bug in JavaScript, typeof null returns 'object'.
Q
What will typeof null return in JavaScript?
Related Questions on Average
What does the parseInt function do in JavaScript?
A). Converts a number to a string
B). Converts a string to an integer
C). Converts a boolean to a number
D). Converts an array to a number
What will typeof NaN return in JavaScript?
A). number
B). NaN
C). undefined
D). object
What will be the result of typeof function() {} in JavaScript?
A). function
B). object
C). undefined
D). method
What does it mean that JavaScript is dynamically typed?
A). Variables do not have types
B). Variables can change type
C). Variables must be declared with a type
D). Variables cannot change type
What will be the result of the following code: let z = '123'; z = Number(z); console.log(typeof z);?
A). string
B). number
C). undefined
D). boolean
Given let a = '10'; let b = 20;, what is the result of a + b?
A). 30
B). 1020
C). 30
D). NaN
What is the result of typeof [] in JavaScript?
A). array
B). object
C). list
D). undefined
Which operator is used to determine the type of a variable in JavaScript?
A). typeof
B). instanceof
C). type
D). isType
What is the type of the value returned by parseFloat('3.14abc')?
A). number
B). string
C). NaN
D). undefined
Given the code: let y = 10; y = true;, what is the type of y after execution?
A). number
B). boolean
C). string
D). object