JavaScript Loops Quiz

What is the purpose of the else statement in JavaScript?

• To define a function

• To create a loop

• To provide an alternative code block when the if condition is false

• To declare a variable

In a for loop, what is the purpose of the first statement (e.g., let i = 0) inside the parentheses?

• It defines the loop condition.

• It specifies the loop increment.

• It initializes the loop variable.

• It defines the loop block.

In a for loop, what does the condition determine?

• The loop variable's initial value

• The loop's termination condition

• The loop's increment value

• The loop's block of code

In a while loop, when is the condition checked?

• Before executing the loop body

• After executing the loop body

• It's checked only once at the beginning

• It's checked both before and after the loop body

In a do-while loop, when is the condition checked?

• Before executing the loop body

• After executing the loop body

• It's checked only once at the beginning

• It's checked both before and after the loop body

How does a do-while loop differ from a while loop?

• A do-while loop must have a condition.

• A do-while loop executes at least once.

• A do-while loop doesn't use a loop variable.

• A do-while loop doesn't support an exit condition.

What is the primary purpose of using loops in programming?

• To create conditions

• To perform repetitive tasks

• To define variables

• To handle exceptions

Which term is often used interchangeably with "iterative calculations" in programming?

• Repetitive calculations

• Recursive calculations

• Conditional calculations

• Exponential calculations

How can you create an infinite loop using a for loop?

• Omit the initialization step

• Omit the condition step

• Omit the update step

• Place true as the condition

Which of the following is a correct example of a nested if-else statement?

•     a) if (condition) { if (condition) { code } }

•     b) if { if { code } (condition) } (condition)

•     c) if (condition) { if { code } }

•     d) (condition) if { code } else { code }