What is the result of typeof undefined?
A). undefined
B). null
C). object
D). number
Which symbol is used to denote a string template literal?
A). ''
B).
C). ``
D). {}
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()
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 output of typeof function() {}?
A). function
B). object
C). undefined
D). number
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List