Understanding If-Else Statements in JavaScript

What is the main use of booleans in JavaScript as mentioned in the text?

• To declare variables

• To create loops

• To define functions

• As a condition of an if statement

What does an if statement do with the code inside its curly braces if the condition is true?

• Deletes the code

• Executes the code

• Repeats the code

• Ignores the code

What can be used as a condition in an if statement?

• An array

• A string

• A number

• A boolean variable

What happens if the condition in an if statement is false?

• The code inside is deleted

• The code inside is ignored forever

• The code inside is executed twice

• The code inside is not executed

What keyword is used to add code that executes when the if statement condition is false?

• else

• then

• while

• elseif

How do you write an if-else statement to handle both true and false conditions?

• Use 'else' for both true and false

• Use 'elseif' for false

• Use 'if' for both true and false

• Use 'if' for true and 'else' for false

What does the 'else' part of an if-else statement do?

• Never executes

• Executes all the time

• Executes only when the condition is true

• Executes only when the condition is false

In the example, what is the initial value of the variable 'logged in'?

• null

• undefined

• false

• true

What message is printed if the 'logged in' variable is true?

• You are currently logged in

• No message is printed

• You are currently logged out

• Error message

What does the program print if the 'logged in' variable is changed to false?

• Error message

• No message is printed

• You are currently logged in

• You are currently logged out