#Conditionally Render Components

1 messages · Page 1 of 1 (latest)

tough badger
#

How do I conditionally render components?

woven depotBOT
#

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

#

In Astro, you can conditionally render components using JavaScript variables and logical operators in your Astro files. Here's how you can do it:

  1. Define your variables in the frontmatter script of your Astro file. The frontmatter script is enclosed in --- lines at the top of your Astro file. Here's an example:
---
const happy = true;
const finished = false;
const goal = 3;
---

(Source: Astro Documentation (https://docs.astro.build/en/tutorial/2-pages/3#conditionally-render-elements))

  1. Use these variables in your HTML template to conditionally render elements. You can use logical operators (&&, ||) and ternary expressions (condition ? exprIfTrue : exprIfFalse) to control the rendering of your elements. Here's an example:
{happy &&
 <p>I am happy to be learning Astro!</p>}

{finished &&
 <p>I finished this tutorial!</p>}

{goal === 3 ?
 <p>My goal is to finish in 3 days.</p> :
 <p>My goal is not 3 days.</p>}

(Source: Astro Documentation (https://docs.astro.build/en/tutorial/2-pages/3#conditionally-render-elements))

Astro's templating syntax is similar to JSX syntax. So, if you're familiar with JSX, you can apply the same principles in Astro. If you're ever wondering how to use your script in your HTML, then searching for how it is done in JSX is probably a good starting point! (Source: Astro Documentation (https://docs.astro.build/en/tutorial/2-pages/3#conditionally-render-elements))