Using $parent in for loop data that has been fetched (to be eventually used in an interval) about alpine-magic-helpers HOT 9 CLOSED

Did you install the Magic Helpers properly? Check the browser console for any errors.

Can you build your demo on CodePen? (Maybe easiest to just fork a codepen in our demos)

FYI Alpine V3 will make the $parent helper necessary (although it should still work, maybe)

from alpine-magic-helpers.

@KevinBatdorf thanks for quick reply, just came back but been working on this for a while so nice to have somebody to bounce ideas of.

Did you install the Magic Helpers properly?

I think so because i can run both demos you have in code pen they run fine right next to my non working code getting data from the fetched for loop data. That said this is what I have to load it (running this is a serverless environment:

    <link
      href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css"
      rel="stylesheet"
    />
    <script 
      src="https://cdn.jsdelivr.net/gh/kevinbatdorf/alpine-magic-helpers@latest/dist/interval.js" 
      defer
    ></script>
    <script 
      src="https://cdn.jsdelivr.net/gh/alpine-collective/[email protected]/dist/component.min.js" 
      defer
    ></script>
    <script
      src="https://cdn.jsdelivr.net/gh/alpinejs/[email protected]/dist/alpine.min.js"
      defer
    ></script>

Can you build your demo on CodePen?

https://codepen.io/storegear/pen/GRrPvdv

THanks

from alpine-magic-helpers.

In that codepen, you're missing the component helper script. Seems to work after adding it?

from alpine-magic-helpers.

Item is not a property of the parent scope, it's just a variable generated on the fly during the loop and it doesn't get passed to the child component and so $parent is not aware of the current interaction, therefore $parent.item can't work.

The only functional hack that can help you achieve that is to define the component as the root child of your loop and to use $el.__x_for.item to access the element. See: https://codepen.io/SimoTod/pen/PoWXaxL

from alpine-magic-helpers.

Oh right. This is where that $loop helper would be useful.

from alpine-magic-helpers.

@SimoTod @KevinBatdorf Appreciate the quick responses and explanation. I want to take it a little bit further if you don't mind.

In the app I am making, the json data array is not hard coded but instead being fetched in my init() returned data. Perhaps is there an additional layer of waiting or something to that effect that would be needed to access that data in the loop for this counter? I'm getting the error message:
Alpine Error: "TypeError: Cannot read property 'item' of undefined

@KevinBatdorf $loop helper, not seeing this listed, where is that coming from! Thanks guys.

from alpine-magic-helpers.

Hard to tell without seeing the code but it doesn't look related to your x-init. Make sure the component is the root child of the template tag (otherwise it won't work) and that you spell the property correctly (2 underscores before x)

from alpine-magic-helpers.

$loop helper, not seeing this listed, where is that coming from! Thanks guys.

Just something we discussed adding in the future. Maybe for an Alpine V3 release if it's something that will be useful there (quite possibly not).

from alpine-magic-helpers.

I dropped this into your code pen:

fetch('https://my-json-server.typicode.com/typicode/demo/posts')
.then(response => response.json())
.then(data => this.items = data);

With no issues...so i must be doing something wrong with the root child, the hunt begins :/ Thanks for your guy's help!

from alpine-magic-helpers.