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Hi welcome to unit 9.

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So this is the second unit focusing only on javascript no edged him out no CSSA just yet we have this

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unit which talks about control flow.

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We just learned about the basics of javascript's of primitives variables.

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Some of the basic built in methods and we also talked about how we run files and how to use the chrome

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developer cons. And this unit we're talking about control flow which is really about making decisions

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and controlling the way that our code runs.

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So we're going to talk about some really important concepts including IF statements or conditionals

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and loops.

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And before I dive into these specific objectives I just want to give you a lay for land.

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We have three more units after this one.

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So four more basic gyroscope units in total before we go back to each timeout and see assess.

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And then we add in javascript together and we talked about something called Dom and inflation.

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So once we do that we can start making some fun games.

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We can start really building applications things that are interactive and that look really nice and

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are styled well not just simple console games or javascript basic games but really substantial applications

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so we're getting there but I don't need to skip ahead to that.

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It might be tempting but trust me it's really important that you understand everything that we're going

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to talk about in the next few minutes.

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These are probably the most important for the rest of the course.

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You might think that they're the most boring or the least exciting reasons for not making something

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there's no exciting finished product there's no real payoff.

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But if promise if you just wait a few units you'll make it through this section which hopefully is exciting

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enough.

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We talk about how programming languages work.

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We talk about writing logic it's really a creative endeavor in my opinion it's not something that's

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as dry or intimidating as it might appear at first.

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But the point is that what we're going to learn here is foundational for everything else for no Jay

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asked for Express for Jay Querrey for Dominey relation for databases authentication everything that

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we're going to talk about in this unit and the next three units is going to carry over to every other

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topic in this course that involves Javascript.

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So hang in there we'll get to making those games really really soon.

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As far as this particular unit is concerned we have four main objectives and they really revolve around

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two main categories and two main topics which as I mentioned earlier are conditional statements and

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loops.

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The first objective is that by the end of this unit I want you to be able to evaluate complex logical

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statements.

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So you'll be using things like boolean operators and logical operators and comparison operators.

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Basically I want you to understand how they work and how they interact and that's closely related to

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the next objective which is that I want you to be able to write conditional statements with if else

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if and else components.

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So three part conditional statements which is how we make decisions in javascript and then the next

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two objectives pertain to loops.

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So the first one is pretty simple.

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I just want you to be able to write for loops and while loops and incorporate them into your own applications

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and your own exercises.

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So two types of loops for loops and while loops and then the last objective is that I'd like you to

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be able to translate from one type to another.

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So from a for loop to a while loop or take an existing while loop and turn it into a for loop.

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And then of course sprinkled throughout the unit there are a few exercises small projects and Equus