What will be the result of typeof function() {} in JavaScript?
A). function
B). object
C). undefined
D). method
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 JSON.parse('null')?
A). null
B). string
C). object
D). undefined
What does the isNaN function do?
A). Checks if a value is not a number
B). Converts a value to a number
C). Checks if a value is a number
D). Converts a value to NaN
Given the code: let y = 10; y = true;, what is the type of y after execution?
A). number
B). boolean
C). string
D). object
Which type conversion happens automatically in the expression 3 + '5'?
A). Number to String
B). String to Number
C). Boolean to String
D). Number to Boolean
What is the result of typeof [] in JavaScript?
A). array
B). object
C). list
D). undefined
Which of the following values is considered falsy in JavaScript?
A). 1
B). 0
C). 0
D). {}
What will typeof null return in JavaScript?
A). null
B). undefined
C). object
D). number
What is the type of the value returned by parseFloat('3.14abc')?
A). number
B). string
C). NaN
D). undefined