Expressions and Conditional Statements

What is a boolean expression?

• An expression that evaluates to either true or false

• An expression that evaluates to an array

• An expression that evaluates to a string

• An expression that evaluates to a number

What are the different types of conditional statements?

• true, false, null

• start, stop, pause

• yes, no, maybe

• if, else if, else

What are the logical operators in programming?

• Up, Down, Left

• Plus, Minus, Multiply

• True, False, Maybe

• AND, OR, NOT

Explain the purpose of switch statements.

• Switch statements are designed to store and retrieve data from a database.

• The purpose of switch statements is to perform different actions based on different conditions.

• The purpose of switch statements is to calculate mathematical operations.

• Switch statements are used to repeat a specific action based on a condition.

What is the syntax of the ternary operator?

• condition + expression1 - expression2

• condition ? expression1 : expression2

• condition && expression1 || expression2

• condition == expression1 != expression2

How do you write a simple boolean expression in programming?

• By using addition, subtraction, and multiplication

• By using logical operators such as AND, OR, and NOT.

• By using if-else statements

• By using string concatenation

What is the difference between if-else and switch statements?

• If-else and switch statements are exactly the same

• If-else can only be used for testing multiple conditions against a single variable

• If-else allows for more complex conditions and switch is more suitable for testing multiple conditions against a single variable.

• Switch statements allow for more complex conditions than if-else

What are the possible outcomes of a logical AND operator?

• Positive or Negative

• Yes or No

• True or False

• On or Off

When would you use a ternary operator instead of an if-else statement?

• When you need to assign a value to a variable based on a condition in a more concise and readable way.

• When you want to confuse other developers

• When you want to improve code readability

• When you want to make the code more complicated

What is the result of a logical OR operator if both operands are true?

• true

• false

• null

• undefined