Answer & Solution
Answer: Option A
Solution:
[] instanceof Array returns true.
Q
What will be the output of [] instanceof Array in JavaScript?
Related Questions on Average
What is the output of typeof function(){} in JavaScript?
A). function
B). object
C). undefined
D). null
What does the typeof operator return for an undefined variable?
A). undefined
B). number
C). boolean
D). string
What is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
What does typeof new Date() evaluate to in JavaScript?
A). date
B). object
C). string
D). null
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
What will be the output of typeof {} in JavaScript?
A). object
B). array
C). null
D). undefined
How does JavaScript evaluate Boolean(0)?
A). 1
B). 0
C). null
D). undefined
What will be the output of typeof null in JavaScript?
A). object
B). null
C). undefined
D). string
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.
What is the result of typeof NaN in JavaScript?
A). number
B). NaN
C). undefined
D). string