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So we've only just begun javascript and it's already time for our first quick problem set.

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So there are three challenges here and I'd like for you to try to do them without any code without running

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them in the browser and the console.

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That's not the point here.

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What really we're trying to do is check for your conceptual understanding of the percentage sign or

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the plus sign between two strings or the square brackets or link and the double backslash.

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So go ahead and try evaluating these mentally and pause video and then following this we'll have solutions

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.

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OK so I'm going to go ahead and start discussing the first problem here.

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So 100 maade three modules over remember is the remainder operator.

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So we divide three into 100 as many times as he can go in.

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So that is going to be 33 times.

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And then we subtract 33 times three which is ninety nine from 100 and we get 1.

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So divide 3 in as many times as possible and then take the remainder.

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So that should be 1.

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So if we want to run this in our council we can go ahead and do 100 maade 3 and we get 1.

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All right.

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So let's move on to the second one now.

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We have the string blah that is being added to another string blah.

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Remember that's called concatenation.

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And because we have the parentheses around it that will happen first.

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So that's basically the equivalent of running law plus law which will just give us blah blah no space

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and then we're adding the square brackets onto that character 6.

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So that's going to be the sixth index which is actually the seventh character because it starts 0.

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So we would end up with 0 1 2 3 4 5 6 the letter A.

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And that's what we get just to verify.

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I'll just run the entire line.

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Great.

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And we get the letter A.

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So let's move on to the final one here.

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So this one's a little bit trickier.

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It actually combines numbers and strings together in one expression here.

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So we start just on the left side.

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Hello hotlink.

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So that's going to be one two three four five.

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So we end up with five books modulo And then this one is even trickier because it looks like it's four

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characters length on those four characters.

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But in actuality when we run this string and I hit enter it comes back to me as just three characters

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and that's because we're escaping this backslash.

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Just like if I did backslash double quote The backslash goes away and we end up with our double quote

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inside.

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So if we evaluate this we end up with five maade three.

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And that of course three goes into five one time with the remainder of two.

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So if we try that out we should get two.

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And we do.

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OK.

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So hopefully you enjoy those super quick exercises very soon.

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These exercises will then become making a tic tac toe game making a blog app all sorts of fun things

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using javascript.

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But we have to start small