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So this was a module about asynchronous code and you learned all the theory about that, how Javascript

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offloads certain tasks and how the event loop and how the message queue then is used to get that back

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into the stack and executed there

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and that's of course very important theory because that really is a core part of Javascript and explains how

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your code executes and then you learned about callback functions which you use everywhere and how you

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can optimize them a bit more by introducing promises, where you can write your own promises,

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there also are certain APIs which uses promises from the ground up which we'll also see later in the course,

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which can help you write more readable and more structured code, either with

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then and catch blocks or with async await

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and there are some differences or some things to be aware of,

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most importantly that this does not magically change Javascript but just transforms some code and you

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will also learn about promise race

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all and all settled

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which also can help you orchestrate your code in your promises

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and this is something very important, this was a very important module.

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Definitely make sure you understood it,

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it's relatively late in the course because it's also advanced but it's a significant and important part

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of Javascript and even if you skipped other modules, this is a core module which you absolutely have to

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understand.