javascript-loops

Question 1

What is the purpose of a loop?

Answer 1

repeat a block of code exponentially quickly

Question 2

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

Answer 2

how long to keep the loop going

Question 3

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

Answer 3

iteration is the number of times it runs

Question 4

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

Answer 4

before executing the statement

Question 5

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

Answer 5

first before the loop starts

Question 6

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

Answer 6

second, after initialization, then again once loop runs

Question 7

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

Answer 7

at the end of the code block

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

increases by one

Question 10

How do you iterate through the keys of an object?

Answer 10

for/in loop