What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
What is the data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list
What is the output of typeof null?
A). null
B). undefined
C). object
D). number
Which method can be used to convert a string to a number in JavaScript?
A). parseInt()
B). toString()
C). toNumber()
D). parseStr()