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 output of '5' - 3?
A). 2
B). 2
C). 53
D). Error
What is the data type of 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What is the data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List
How do you declare a variable with an undefined value?
A). let x;
B). let x = '';
C). let x = 0;
D). let x = null;
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==