What is the type of the value returned by JSON.parse('null')?
A). null
B). string
C). object
D). undefined
Given the code: let y = 10; y = true;, what is the type of y after execution?
A). number
B). boolean
C). string
D). object
What is the result of the following code: let x = 5; x = 'hello'; console.log(typeof x);?
A). number
B). string
C). undefined
D). object
What will be the result of typeof function() {} in JavaScript?
A). function
B). object
C). undefined
D). method
What is the result of typeof [] in JavaScript?
A). array
B). object
C). list
D). undefined
Given let a = '10'; let b = 20;, what is the result of a + b?
A). 30
B). 1020
C). 30
D). NaN
Which of the following values is considered falsy in JavaScript?
A). 1
B). 0
C). 0
D). {}
What happens when you add a number and a string in JavaScript?
A). An error is thrown
B). The number is converted to a string
C). The string is converted to a number
D). Both are converted to boolean
What will typeof NaN return in JavaScript?
A). number
B). NaN
C). undefined
D). object
What will typeof null return in JavaScript?
A). null
B). undefined
C). object
D). number