Which of the following values is considered falsy in JavaScript?

What is the type of the value returned by parseFloat('3.14abc')?

A). number

B). string

C). NaN

D). undefined

Given let a = '10'; let b = 20;, what is the result of a + b?

A). 30

B). 1020

C). 30

D). NaN

What does the isNaN function do?

A). Checks if a value is not a number

B). Converts a value to a number

C). Checks if a value is a number

D). Converts a value to NaN

What will be the result of the following code: let z = '123'; z = Number(z); console.log(typeof z);?

A). string

B). number

C). undefined

D). boolean

What is the result of typeof [] in JavaScript?

A). array

B). object

C). list

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 will typeof null return in JavaScript?

A). null

B). undefined

C). object

D). number

What will be the result of typeof function() {} in JavaScript?

A). function

B). object

C). undefined

D). method

What is the type of the value returned by JSON.parse('null')?

A). null

B). string

C). object

D). undefined

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