What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
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 will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number