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I'll write.

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So it's time for another quick problem set.

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This time we're covering wild loops and Javascript.

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So there are three problems here and rather than you writing code I'm actually giving you code and all

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I need to do is evaluate what is printed out.

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So here's the first one.

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Take a moment pause the video if you need to but please don't just copy the code to your console unless

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you want to check the answer that you've come up with on your own.

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So the answer to this one is that it prints out the odd numbers from 1 to 9.

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And the reason that it does that starts with not equal to 1.

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Wow.

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Nahm is less than equal to 10.

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Print out the number so we print out one and then we add two.

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So then we go through with the number three.

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That's less than 10.

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We print out three and then we go to 5 and it keeps going until we're at nine.

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Cancel that log nine nine plus equals two.

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So then we're at 11 and that's no longer less than or equal to 10.

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So just to verify that if I opened up my javascript counsel here and I paste that in you'll see I get

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1 through 9.

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There is one small confusing thing which is that it looks like it printed out 11.

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But you'll notice it's slightly different.

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There's this arrow here that we don't see on any of the other ones and we also don't have the sort of

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link next to 11 so what's actually happening here is that the consul is showing us the value of the

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last evaluated expression.

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So even though it's not printed out to is still added to 9 so 11 is the last thing that is evaluated

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and the Crome Council just shows that to us without printing it out.

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So let's move on to the next one.

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Take a moment pause the video if you need to take a longer look and then we'll go over the solution

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.

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So this one is going to print out all the multiples of 4 between 1 and 20.

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So Gnome starts at 1.

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While Nahm is less than or equal to 20 so we have an if statement inside of a loop.

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And this if statement is checking if a number is a multiple of four so if number mod 4 is equal to zero

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which means does 4 divide evenly.

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If it does printed out.

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So the first time through we go through 1 2 3 4 and now for maade for is zero.

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So we print out the number 4 and then we go through again with 5.

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Nothing happens 6 nothing happens 7 nothing happens 8 8 mod 4 is also 0.

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So with constant out log number.

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So just to verify that.

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Open up the con..

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You can paste it in and you see we get 4 8 12 16 and 20.

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So one more here.

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Take a moment Pozza screen again will go over a solution in just a second.

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So this one's a little bit tricky.

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It's actually an infinite loop so you'll see that number starts at 100 and this code will run.

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While the number is less than 150 So 100 is less than 150 then we're printing out a number plus one

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.

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But the important line is here where subtracting one from number every time.

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So it starts at 100 and we're going the other direction we're subtracting.

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So it's always going to be less than 150.

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So I'm not going to run this in the con..

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But if I did it would tell me I have an infinite loop