Answer & Solution
Answer: Option A
Solution:
The typeof operator returns 'undefined' for variables that are not initialized.
Q
What is the result of typeof undefined?
Related Questions on Average
What is the result of typeof new TypeError('type error')?
A). typeerror
B). object
C). function
D). undefined
What does typeof 42 return?
A). number
B). string
C). boolean
D). undefined
What is the result of typeof null?
A). null
B). undefined
C). object
D). number
What does typeof Symbol('id') return?
A). symbol
B). string
C). object
D). undefined
What is the result of typeof 'hello'?
A). string
B). object
C). undefined
D). number
What does typeof new Error('message') return?
A). error
B). object
C). function
D). undefined
What is the result of typeof [1, 2, 3]?
A). array
B). object
C). list
D). undefined
What does typeof function() {} return?
A). function
B). object
C). method
D). undefined
What does typeof true return?
A). number
B). boolean
C). undefined
D). object
What does typeof document return in a web browser environment?
A). document
B). object
C). function
D). undefined