Answer & Solution
Answer: Option A
Solution:
typeof Symbol('id') returns 'symbol'.
Q
What is the output of typeof Symbol('id') in JavaScript?
Related Questions on Average
What does Number('123') return in JavaScript?
A). 123
B). '123'
C). NaN
D). 1
What is the output of typeof function(){} in JavaScript?
A). function
B). object
C). undefined
D). null
How does JavaScript evaluate typeof /^regex$/ in JavaScript?
A). regexp
B). object
C). string
D). null
What is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
How does the typeof operator handle arrays in JavaScript?
A). array
B). object
C). undefined
D). null
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
What does typeof Math evaluate to in JavaScript?
A). math
B). object
C). number
D). undefined
What will be the output of [] instanceof Array in JavaScript?
A). 1
B). 0
C). null
D). undefined
How does JavaScript evaluate Boolean(0)?
A). 1
B). 0
C). null
D). undefined
How does the instanceof operator work in JavaScript?
A). Checks if an object has a specific prototype in its prototype chain.
B). Checks if two variables are of the same type.
C). Checks if a variable is null.
D). Checks if a variable is undefined.