Episode Details

In this episode of Syntax, Scott talks with Wes about moving Level Up Tutorials from React to SvelteKit — why he did it, how, benefits, things to watch out for, and more!

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07:28 - Thoughts

• Apples to oranges, so unfortunately, no super legit ability to compare.
  • SvelteKit isn’t analogous with a custom React setup that uses CSR
    • SSR is usually going to be faster - we can ship less JS
    • Some big things changed beyond React → SvelteKit
      • Apollo → GFetch
      • Plyr → Vime
    • HLS starts grabbing chunks immediately, so it’s hard to get accurate load time and transfer.
• Whole conversion took a couple of months.
• Hardest part was making UI choices and changes, straight up converting components one by one wasn’t actually that tough

16:14 - Converting React components to Svelte

• useState becomes just a straight-up variable
• Graphql calls were hooks now just imported generated functions
• Remove extranous fragments
• Convert {things && } to {#if thing}{/if}
•  becomes 

24:06 - Spark joys

• State
  • Our checkout flow became way more transparent, way easier with Svelte stores
• Render flow
  • Was never something we needed to really think about. Didn’t think about memoizing, or worrying about too many renders down the line, just never needed to
• Overall developer experience
  • It’s honestly a joy to work in and I don’t want to go back
• Making a library
  • Package dir, new SvelteKit project, svelte-kit package
  • I made svelte-toy - https://github.com/leveluptuts/svelte-toy
  • s