#props as part of class name

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sullen dome
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It's possible to use value from props as a part of class name?

shell mountainBOT
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Hi @sullen dome. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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Yes, it is possible to use a value from props as a part of a class name in Astro. You can extract the class name from the props and use it in your component. Here is an example of how you can do it:

const { class: className } = Astro.props;

In this example, className is a variable that holds the value of the class prop. You can then use this className variable as part of the class name in your component.

For instance, if you have a div element in your component, you can assign the class name like this:

<div class:list={[className]}>...</div>

This will assign the value of className as the class of the div element.

Please note that this is just an example, and the actual implementation may vary based on your specific use case and the structure of your Astro component.

You can find more information about this in the Github Issue (closed): Missing styles for element when class is passed as prop (https://github.com/withastro/astro/issues/8309).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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sullen dome
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@shell mountain
In astro template I have:
<Preview theme="dark" />

Now in preview component I whould like to have:

const { theme } = Astro.props;

<section class="my-4-{{theme}}">

shell mountainBOT
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Let me check the knowledge base for you. One moment! :books:

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In Astro, you can use JavaScript expressions directly in your HTML. To use the theme prop as part of the class name in your Preview component, you can do the following:

---
const { theme } = Astro.props;
---
<section class={`my-4-${theme}`}>...</section>

In this example, the theme prop is being interpolated directly into the class string. This will result in a class like my-4-dark if the theme prop is "dark".

This is based on the way props are used in Astro, as described in the Astro documentation (https://docs.astro.build/en/basics/astro-components#component-props).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: