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Welcome to section number five in this section.

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You're gonna learn how to debug your know J.S. applications.

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So as you might have already seen when you run your program things don't always work as expected.

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You might introduce a typo into your program causing your app to crash or you might misuse a function

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causing strange and unexpected behavior.

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The goal in this section is to give you the tools needed to actually fix these problems so you're going

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to learn how to debug and inspect your app as it's running so you can figure out exactly where your

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program is going wrong and why that's going to give you the information needed to fix the mistake in

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the code and get back on track.

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Now in the beginning all of this is going to be a little frustrating as it's going to take a lot of

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time to debug your issues.

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It might take 10 or 15 minutes to figure out what's going wrong and to solve it.

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The good news is that as you make mistakes which you will it's only going to get easier to fix them

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over time by the end of the class.

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What might have taken you 10 minutes to debug will only take 10 or 20 seconds to fix.

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You'll notice you start to see a lot of the same issues and patterns over time.

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So what we're going to focus on in this section is not perfection.

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Perfection isn't a realistic goal.

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Anyone who's writing software is making mistakes.

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The real goal is to be able to recover from them quickly and get back on track so we can continue to

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be productive.

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All right let's jump right in and learn how to debug our note apps.