What is the result of typeof undefined in JavaScript?
A). undefined
B). string
C). null
D). object
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
How does the instanceof operator behave with primitive values in JavaScript?
A). Throws an error
B). Returns true for all primitive values
C). Returns false for all primitive values
D). Primitive values cannot be used with instanceof
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
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
How does JavaScript evaluate typeof /^regex$/ in JavaScript?
A). regexp
B). object
C). string
D). null
What is the result of typeof NaN in JavaScript?
A). number
B). NaN
C). undefined
D). string
How does JavaScript evaluate typeof 'Hello'?
A). string
B). object
C). undefined
D). null