Svelte: $derived can now be overwritten

Post by snide » Wed, Mar 26, 2025, 2:03 AM UTC

strangescript wrote: post #11

snide wrote: post #9

Earlier quoted context omitted.

I'm almost finished with a large, complex app written with Svelte 5, web sockets and Threlte (Three JS) [0]. Previously, I'd written React for about a decade, mostly on the UI side of things. I vastly prefer Svelte, because of how clean the code feels. There's only one component per file, and the syntax looks and writes deceptively like vanilla JS and HTML. There's a bit of mind-warp when you realize Svelte doesn't w…

"There's only one component per file" If you don't do this in React, its your own fault.

Post by mightyham » Wed, Mar 26, 2025, 2:15 AM UTC

benatkin wrote: post #6

Wow, the optimistic UI example is so simple: https://svelte.dev/docs/svelte/$derived#Overriding-derived-v... I wonder what Ryan Carniato, the author of Solid, thinks of it.

Post by pier25 » Wed, Mar 26, 2025, 3:15 AM UTC

impulser_ wrote: post #14

joseneca wrote: post #10

Agh, I understand why runes were implemented, but I still can't get myself to like them. It feels like Runes take away from what made Svelte Svelte (the simple, concise syntax), and changes like this seem like slow concessions back in that direction anyway.

You just have to build a big project with Svelte 5 and you will come to like them. A lot of magic is okay for simple application, but when you want to build anything that scales Svelte before runes was just horrible. With Svelte 5 and Runes you can look at any component and instantly know what it does. You couldn't do that with Svelte 4 unless you wrote the whole code yourself.

Post by pier25 » Wed, Mar 26, 2025, 3:22 AM UTC

dvrp wrote: post #8

yewenjie wrote: post #4

People who have migrated a large enough production codebase to Svelte 5, what's your devex like?

pretty good. some people in my team don’t like svelte magic and wish we were using react but others say, and i quote, “damn this is clean” or “almost effortless it just works” and i’ve seen again and again engineers ramp up pretty fast compared to my Knockout, Angular, or React times… Pretty happy! Just wished they didn’t change their “magic” so often, but it’s the price to pay for innovation—if we can even call fron…

Post by [deleted] » Wed, Mar 26, 2025, 3:42 AM UTC

distalx wrote: post #26

joseneca wrote: post #10

Agh, I understand why runes were implemented, but I still can't get myself to like them. It feels like Runes take away from what made Svelte Svelte (the simple, concise syntax), and changes like this seem like slow concessions back in that direction anyway.

I get why runes , but you're right. That simple Svelte I loved feels a bit further away now. Not sure how I feel about it long-term.