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

Which of the following values is considered falsy in JavaScript?

A). 1

B). 0

C). 0

D). {}

What is the result of typeof [] in JavaScript?

A). array

B). object

C). list

D). undefined

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 typeof function() {} in JavaScript?

A). function

B). object

C). undefined

D). method

What does it mean that JavaScript is dynamically typed?

A). Variables do not have types

B). Variables can change type

C). Variables must be declared with a type

D). Variables cannot change type

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 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 null return in JavaScript?

A). null

B). undefined

C). object

D). number

Given the code: let y = 10; y = true;, what is the type of y after execution?

A). number

B). boolean

C). string

D). object

Which type conversion happens automatically in the expression 3 + '5'?

A). Number to String

B). String to Number

C). Boolean to String

D). Number to Boolean