Skip to content

Astro, prerendering a single component in a SSR page

I had a server-rendered Astro page and I was doing a quite intensive calculation on it. It ran on every page load.

So I used a partial (🆕 in Astro 3.4) and set the prerender flag on it:

---
export const prerender = true
export const partial = true
---

Then I included this partial client-side using HTMX (you could also just use a fetch() request and swap some innerHTML too).


I wrote 21 books to help you become a better developer:

  • HTML Handbook
  • Next.js Pages Router Handbook
  • Alpine.js Handbook
  • HTMX Handbook
  • TypeScript Handbook
  • React Handbook
  • SQL Handbook
  • Git Cheat Sheet
  • Laravel Handbook
  • Express Handbook
  • Swift Handbook
  • Go Handbook
  • PHP Handbook
  • Python Handbook
  • Linux Commands Handbook
  • C Handbook
  • JavaScript Handbook
  • Svelte Handbook
  • CSS Handbook
  • Node.js Handbook
  • Vue Handbook
...download them all now!

Also, JOIN MY CODING BOOTCAMP, an amazing cohort course that will be a huge step up in your coding career - covering React, Next.js - next edition February 2025

Bootcamp 2025

Signups open tomorrow