Javascript Loops

Question 1

What is the purpose of a loop?

Answer 1

To repeat an action until the condition is completed

Question 2

What is the purpose of a condition expression in a loop?

Answer 2

It describes what starts and stops a loop

Question 3

What does “iteration” mean in the context of loops?

Answer 3

each run of the loop

Question 4

When does the condition expression of a while loop get evaluated?

Answer 4

at the start of each loop

Question 5

When does the initialization expression of a for loop get evaluated?

Answer 5

at the very start

Question 6

When does the condition expression of a for loop get evaluated?

Answer 6

at the start and at the beginning of each loop

Question 7

When does the final expression of a for loop get evaluated?

Answer 7

At the end of each loop

Question 8

Besides a return statement, which exits its entire function block, which keyword exits a loop before its condition expression evaluates to false?

Answer 8

break

Question 9

What does the ++ increment operator do?

Answer 9

adds 1 to the target

Question 10

How do you iterate through the keys of an object?

Answer 10

with a for in loop