What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
What is the output of typeof function() {}?
A). function
B). object
C). undefined
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
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 null?
A). null
B). undefined
C). object
D). number