Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
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
Which method can be used to convert a string to a number in JavaScript?
A). parseInt()
B). toString()
C). toNumber()
D). parseStr()
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
Which symbol is used to denote a string template literal?
A). ''
B).
C). ``
D). {}
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number