Answer & Solution
Answer: Option A
Solution:
The typeof operator returns 'symbol' for values created with the Symbol function.
Q
What is the result of typeof Symbol('id')?
Related Questions on Average
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 is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
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 output of '5' - 3?
A). 2
B). 2
C). 53
D). Error
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN