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.
How does JavaScript evaluate typeof /^regex$/ in JavaScript?
A). regexp
B). object
C). string
D). null
What will be the output of [] instanceof Array in JavaScript?
A). 1
B). 0
C). null
D). undefined
What does typeof new Date() evaluate to in JavaScript?
A). date
B). object
C). string
D). null
What does typeof Math evaluate to in JavaScript?
A). math
B). object
C). number
D). undefined
What is the result of typeof NaN in JavaScript?
A). number
B). NaN
C). undefined
D). string
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 is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
What does typeof window.evaluate evaluate to in JavaScript?
A). function
B). object
C). string
D). undefined