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 data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Object
Which symbol is used to denote a string template literal?
A). ''
B).
C). ``
D). {}
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the output of typeof null?
A). null
B). undefined
C). object
D). number
What is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above