Which of the following values is considered falsy in JavaScript?

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

A). null

B). string

C). object

D). undefined

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

A). function

B). object

C). undefined

D). method

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 typeof NaN return in JavaScript?

A). number

B). NaN

C). undefined

D). object

Which operator is used to determine the type of a variable in JavaScript?

A). typeof

B). instanceof

C). type

D). isType

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 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

How can you check if a variable is an array in JavaScript?

A). typeof variable === 'array'

B). Array.isArray(variable)

C). variable instanceof array

D). variable.constructor === array

In JavaScript, what will be the type of a variable x after x = 5 + true;?

A). number

B). string

C). boolean

D). undefined