What is the result of typeof undefined?
A). undefined
B). null
C). object
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 '5' - 3?
A). 2
B). 2
C). 53
D). Error
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
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 output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the output of typeof null?
A). null
B). undefined
C). object
D). number
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error