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In this video we're going to discuss why we care about tuples and when we might use them.

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I'll be honest with you I am not a huge fan of tuples and I don't think you're going to really be using

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them in a very regular basis with typescript.

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There are a couple exceptions most notably I think that if you're ever working with a CSP file any one

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represents say a single row you might reach out to a tuple will actually work at the CSP file later

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on inside this course and so you'll see a great example of that in action.

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So let me tell you exactly why I don't think you're going to be using tuples that often at the bottom

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this file on when you declare a new variable called Car specs like so and I'm going to assign it some

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data that has a real important meaning around a car like some specifications around a car.

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So I'm going to assign it a tuple of four hundred three fifty like so I'll make sure that I annotate

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the type on here to make sure it's really clear that this is a tuple so it's a number and a number like

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so.

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Okay.

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So here's the question what do these numbers mean to you.

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I mean looking at this line of code right here in isolation what do those numbers mean.

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Clearly it has something to do with these specs around a car.

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But what is the purpose of these numbers.

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Well for us as engineers I don't think that we can really look at this line of code and understand what

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is going on here.

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We know that there are two values.

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We know that they are numbers but that's pretty much it so let's try writing out that same type of data

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structure right here but instead as an object.

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So if I write out a very similar variable right here maybe I'll call it car stats this time I'm gonna

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make it an object and because it's an object this time I have to add in a key and a value.

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So for the value 400 I'm going to give a key of horsepower horsepower.

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There we go.

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And then for the three three five four I'll put in weight like so.

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All right.

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So what am I trying to illustrate here.

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Well if we use a tuple to represent some meaningful data it's really hard for you and I's engineers

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to look at this value right here and understand what we are trying to say however in an object format

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right here because we are forced to put in a key.

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It is immediately obvious what we are working with.

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I can look at this object right here and understand 0 horsepower 400.

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Got it.

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And then for weights This is the weight of maybe a car in pounds three thousand three hundred fifty

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four pounds.

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So when we make use of an object to model a record it's really clear what we were working with at one

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glance but when we are working at that table much harder to understand exactly what is going on at a

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glance so honestly I think that in general any time we want to model a record or record it in our application

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somehow we're going to stick with a javascript convention of reaching for an object as opposed to a

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temple.

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Now like I said there are some corner cases where we might want to use this in some types of applications

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and we will see an example of it later on INSIDE THIS COURSE.

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Actually it's one of the first two or three applications we're going to work on.

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All right.

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So I'm sorry to teach you about troubles and then say hey we're never going to use them but nonetheless

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it is a feature of typescript that is very prominently featured in the official documentation.

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So I just want to make sure you have at least a passing idea of what these type of things are all about.

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So let's take a quick pause right here.

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We're going to move on to our next topic in the next video.