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 typeof function() {}?
A). function
B). object
C). undefined
D). number
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 [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 symbol is used to denote a string template literal?
A). ''
B).
C). ``
D). {}
What is the output of '5' - 3?
A). 2
B). 2
C). 53
D). Error
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==