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 does typeof { name: 'John' } return?
A). object
B). array
C). function
D). undefined
What does typeof true return?
A). number
B). boolean
C). undefined
D). object
What does typeof Symbol('id') return?
A). symbol
B). string
C). object
D). undefined
What is the result of typeof [1, 2, 3]?
A). array
B). object
C). list
D). undefined
What is the result of typeof NaN?
A). number
B). NaN
C). undefined
D). object
What does typeof new RangeError('range error') return?
A). rangeerror
B). object
C). function
D). undefined
What does typeof console return in a web browser environment?
A). console
B). object
C). function
D). undefined
What is the result of typeof document.getElementById('example')?
A). element
B). object
C). function
D). undefined
What does typeof function() {} return?
A). function
B). object
C). method
D). undefined
What does typeof new Float32Array() return?
A). float32array
B). array
C). object
D). undefined