JS loops

Question 1

What is the purpose of a loop?

Answer 1

perform repeated tasks

Question 2

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

Answer 2

to determine when to continue and when to end

Question 3

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

Answer 3

process/point in time when the code is executed

Question 4

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

Answer 4

The condition is evaluated before each iteration.

Question 5

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

Answer 5

once before the loop begins

Question 6

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

Answer 6

before each iteration

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

add one to the current value of the variable

Question 10

How do you iterate through the keys of an object?

Answer 10

for..in loop