Which method can be used to convert a string to a number in JavaScript?
A). parseInt()
B). toString()
C). toNumber()
D). parseStr()
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
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
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 data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the output of typeof null?
A). null
B). undefined
C). object
D). number