Javascript basics 8

What type of loop in JavaScript is used to execute a block of code a specific number of times?

• while loop

• for loop

• if loop

• do...while loop

Which loop will always execute the code block at least once?

• while loop

• for loop

• if loop

• do...while loop

In a for loop, which part is optional?

• a) Initialization
• b) Condition
• c) Increment/Decrement
• d) All parts are required

Which of the following is the correct syntax for a for loop in JavaScript?

• a) for (var i = 0; i < 10; i++)
• b) for (i = 0; i < 10; i++)
• c) for (var i = 0; i < 10)
• d) for i = 0; i < 10; i++

What is the purpose of the continue statement in a loop?

• a) To terminate the loop immediately
• b) To skip the current iteration and move to the next
• c) To restart the loop from the beginning
• d) To print a message to the console

How can an infinite loop be created using a for loop?

• a) By providing an initial value
• b) By not providing an exit condition
• c) By using the break statement
• d) By using the return statement

What is the output of the following code snippet?: for (let i = 0; i < 5; i++) { console.log(i); }

• a) 0
• b) 1
• c) 0 1 2 3 4
• d) 1 2 3 4

Which loop is best suited when you want to loop through the elements of an array?

• a) while loop
• b) for loop
• c) if loop
• d) do...while loop

What is the purpose of the break statement in a loop?

• a) To skip the current iteration and move to the next
• b) To restart the loop from the beginning
• c) To terminate the loop immediately
• d) To print a message to the console

What will be the value of i after the following code executes? let i = 0; do { i += 2; } while (i < 10);

• a) 8
• b) 10
• c) 12
• d) 14