Pre assessment_ Front end + React_Gangavati

Which of the following is used to store multiple values in a single variable?

• Variable
• Array
• Function
• Object

Which of the following loops is guaranteed to execute at least once?

• for loop
• while lop
• do while loop
• nested loop

What is the result of 5 % 2 in most programming languages?

• 6
• 3
• 1
• 2

What is the keyword used to declare a constant in JavaScript?

• Variable
• let
• const
• final

Which of the following is a valid function declaration in JavaScript?

• def myFunction()
• create function myFunction()
• function myFunction()
• myFunction = function()

Which operator is used for logical AND in JavaScript?

• &
• &&
• ||
• !

How do you access the third element of an array named arr?

• arr.3
• arr[2]
• arr(4)
• arr(3)

Which keyword is used to exit a loop prematurely?

• Continue
• Break
• Return
• Exit

Which of the following data types is NOT primitive in JavaScript?

• String
• Number
• Object
• Boolean

What is the default value of an uninitialized variable in JavaScript?

• null
• undefined
• NaN