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‫Remember how I said earlier how rendering lists is one

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‫of the most common tasks in React development?

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‫Well, this application is no exception.

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‫And so let's now render the list of pecking items.

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‫And first of all, let's go to our CSS file

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‫because that's again where I pasted

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‫this array of initial items.

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‫So let's grab that.

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‫We can also close index.js

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‫and I will paste it here at the very top.

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‫So you see that we have once again

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‫an array with a few objects, and in this case

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‫each object describes one item to be packed.

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‫So each of them has an ID, a description, quantity,

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‫NT OD packed property

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‫which tells us whether this one has been packed or not.

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‫So based on this

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‫we will then display the item a little bit differently.

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‫So here, well here we don't have any.

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‫So here in the demo app.

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‫So you see right now it's not packed, but if it is packed

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‫then you see it is like strike through.

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‫Now okay, so let's now take these items here and

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‫render them as a list into our UI.

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‫So as the name says

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‫we're going to do that in the packing list.

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‫So first of all, let's again use semantic HTML

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‫and convert this diff into a UL.

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‫So into a unordered list.

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‫All right?

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‫And then immediately here we enter JavaScript mode

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‫because remember how we render lists in React?

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‫Well, we simply use the map method that we already know

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‫on the array.

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‫So initial items, and later on we will, of course

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‫then when we make this dynamic, use another array here.

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‫But again, for now here, we just want to render something

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‫so just to make this work.

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‫Okay?

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‫Then inside the map method

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‫each of the elements will be, let's say an item.

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‫All right? And then for each item

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‫what we want to render is an item component.

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‫So let's immediately write that here

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‫and we will then create the item component in a minute.

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‫So item, and then we passed in as a prop, the entire item.

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‫So item and then item again, let's close this here.

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‫So you see we have a lot of items here.

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‫So the name of the component, the name of the prop,

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‫and then here the object itself

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‫which, remember, is the argument

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‫of this callback function in each iteration over this array.

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‫So nothing new here at this point, I hope.

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‫So, a gift is a safe, but of course item is not defined.

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‫So let's quickly take care of that.

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‫And now here we need to accept the props, right?

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‫So we can do it like this, remember, but even better

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‫we can immediately destructure this

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‫and then give it the name here

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‫of the prop that we passed in, which is item.

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‫And again, it could be anything.

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‫It could be object like O, B, G, or X or anything.

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‫But yeah, it's easier to just call it item here

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‫because that's what it is.

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‫It's just a packing item, so to say.

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‫So here, this item should be now an LI element.

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‫So a list item, because that's usually what direct children

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‫of the UI or of the UL element should be.

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‫And then just to start, just to see if it's working

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‫let's simply render, I think it's called description.

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‫Yes, that's it.

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‫We'll just copy that actually.

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‫So item dot description, give it a safe.

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‫And there it is.

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‫So we have passports and socks.

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‫Now the styling here is a little bit off.

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‫And the reason for that is

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‫that here I actually did a mistake in the HTML.

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‫So here let's actually create a diff, and then

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‫it's this diff that is supposed to have the list class.

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‫All right?

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‫And the reason for that is that later on

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‫we will have another element in here for these filters.

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‫So we will have a diff for these two things down here.

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‫All right.

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‫So of course for me, that's easy to see now

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‫because I already built the app beforehand.

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‫But once you start building your apps on your own

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‫there will be a lot more back and forth

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‫which of course I cannot do here in this course

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‫because then it will take just forever.

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‫Okay, but anyway, let's now add some more here.

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‫So we don't just want a description

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‫we also want this icon here for the leading.

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‫And later we will want this checkbox

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‫but let's leave that for later actually.

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‫So here, let's create a spin element.

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‫So for the text, let's grab that, paste that here.

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‫And then we also want the item dot.

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‫Let's see, it's the item dot quantity exactly.

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‫So item dot quantity.

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‫And notice how sometimes prettier creates like

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‫these empty strings here in our JSX

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‫so many times this is not necessary.

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‫So just get rid of that.

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‫And now finally, we need delete button.

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‫And for now, we won't attach any event handler here

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‫but we will just place an icon here in the form of an emoji.

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‫So maybe like that.

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‫So this X right here.

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‫And again, if you can't make this work

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‫then you can just write the X like this or also like this.

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‫So that would work as well.

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‫Alright, so this has now been rendered here based

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‫off this list.

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‫And if we duplicate this and add something else here

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‫like a charger, one charger, then there it is.

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‫Now to finish, let's just mark one of them as packed.

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‫Make this one true

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‫so that we can add some additional styling here.

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‫So we want to basically have some strike through there.

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‫So that's simple stuff.

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‫So let's come here to the item.

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‫And here we will now conditionally add some styling.

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‫So instead of conditionally adding a class here

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‫I want to conditionally simply add some style.

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‫So let's write style

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‫and then it immediately enters JavaScript mode.

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‫But now I will not immediately write the object

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‫of CSS properties.

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‫Instead, let's actually use the ary operator to

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‫decide which object the style should actually receive.

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‫So if item is packed, and here we don't really

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‫need a condition because this is already a bullion.

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‫So if it is packed

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‫then we want an object which will contain some CSS

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‫for the strike through, but if not,

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‫so if the item is not packed,

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‫then we will want to return this empty object.

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‫And so then no styles are going to be applied.

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‫So the CSS property that we're looking for

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‫is called text decoration

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‫and let's set it to line through like this.

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‫And that worked quite nice.

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‫All right, so let's try another one just for fun.

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‫And yeah, immediately you see

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‫that it gets strike through as well.

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‫So this was yet another way

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‫of using the turnaround operator to conditionally

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‫set some style here.

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‫So you see that we have a lot of freedom in React,

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‫and again we simply use the JavaScript tools

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‫that we already have for this kind of stuff.