What does the typeof operator return for an undefined variable?
A). undefined
B). number
C). boolean
D). string
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
How does JavaScript evaluate Boolean(0)?
A). 1
B). 0
C). null
D). undefined
What does typeof window.evaluate evaluate to in JavaScript?
A). function
B). object
C). string
D). undefined
What does typeof new Date() evaluate to in JavaScript?
A). date
B). object
C). string
D). null
What will be the output of typeof {} in JavaScript?
A). object
B). array
C). null
D). undefined
How does the typeof operator handle arrays in JavaScript?
A). array
B). object
C). undefined
D). null
What is the output of typeof function(){} in JavaScript?
A). function
B). object
C). undefined
D). null
What will be the output of [] instanceof Array in JavaScript?
A). 1
B). 0
C). null
D). undefined
How does JavaScript evaluate typeof 'Hello'?
A). string
B). object
C). undefined
D). null