Quiz: Quiz 4: Control Flow | Module 4: Control Flow – Conditionals and Loops

Module 4: Control Flow – Conditionals and Loops

Lessons

Conditional Statements: if, else, else if
Switch Statements
Loops: for, while, do...while
Loops: for...of and for...in
Loop Control: break and continue

Labs

Number Properties and Loop Control

Quizzes

Quiz 4: Control Flow

Module 4: Control Flow – Conditionals and Loops

Quiz: Quiz 4: Control Flow

1. Which statement is used to execute a block of code only if a condition is true?

for

while

switch

2. What is the purpose of the `else` clause in an `if...else` statement?

To specify an alternative condition to check.

To execute a block of code if the `if` condition is false.

To repeat the `if` block.

To terminate the program.

3. Which loop is best suited for iterating a known number of times?

while

do...while

for

for...in

4. What does the `break` statement do inside a loop?

Skips the current iteration and goes to the next.

Pauses the loop.

Exits the loop entirely.

Restarts the loop.

5. Which loop type guarantees that its code block will execute at least once?

for

while

do...while

for...of

6. What is the primary use of the `for...of` loop?

To iterate over the properties (keys) of an object.

To iterate over the values of an iterable (like an array or string).

To loop a specific number of times using a counter.

To create infinite loops.

7. In a `switch` statement, what is the purpose of the `break` keyword?

To indicate the end of the switch statement.

To exit the current `case` block and prevent "fall-through" to subsequent cases.

To provide a default action if no cases match.

To compare the switch expression with case values.

8. What will be printed by: `for (let i = 1; i <= 3; i++) { console.log(i); }`?

0 1 2

1 2 3

1 2

0 1 2 3

9. Which keyword is used to skip the current iteration of a loop and proceed to the next?

break

return

continue

pass

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