What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
What is the data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Object
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
What is the data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
Which symbol is used to denote a string template literal?
A). ''
B).
C). ``
D). {}