Run client-side JS in Astro MDX

Apr 13, 2024

~~~

I wanted to add some bits of client-side JS in a .mdx file in Astro.

Just a one-liner to redirect after 2 seconds, nothing too crazy:

setTimeout(() => (location.href = '/'), 2000)

In a .astro component I’d normally use:

<script>
  setTimeout(() => (location.href = '/'), 2000)
</script>

but this didn’t work because in the browser what we get is (due to MDX compiler, escaping, etc):

<script><p>setTimeout(() =&gt; (location.href = ’/’), 2000)</p></script>

I ended up using this syntax:

<script>{`
  setTimeout(() => (location.href = '/'), 2000)
`}</script>

and this worked fine.

~~~