JavaScript Quiz Questions and Answers Latest Version (2024/2025) Already Passed

JavaScript Quiz Questions and Answers
Latest Version (2024/2025) Already
Passed
What keyword is used to declare a variable in JavaScript?

A) define


✔✔B) let


C) varname

D) constvar




Which symbol is used to separate multiple statements in JavaScript?

A) ,


✔✔B) ;


C) :

D) .




What will `console.log(2 + "2")` output?

A) 4

B) 22


1

,✔✔C) "22"


D) Error




How do you write a comment in JavaScript?


✔✔A) // This is a comment


B) \* This is a comment *\

C) # This is a comment

D) -- This is a comment




Which function is used to display messages in the browser console?

A) alert()

B) print()


✔✔C) console.log()


D) display()




What is the result of `typeof null`?

A) null


✔✔B) object


2

, C) undefined

D) string




Which operator is used for strict equality in JavaScript?

A) =

B) ==


✔✔C) ===


D) :=




How do you declare a function in JavaScript?

A) function = myFunction() {}


✔✔B) function myFunction() {}


C) def myFunction() {}

D) func myFunction() {}




What will `Boolean(0)` return?


✔✔A) false


B) true


3