A Svelte 5 changelog overview covering snippets, bug fixes, and migration guidance. Live coding of runes-based dynamic filtering plus exploration of effect, onMount, and reactivity features.

Svelte updates and a showcase by Eno on a new component called Svelte Cartesian. The episode starts with a changelog covering various fixes and improvements in Svelte, including event handler changes, input value handling, and CSS pruning. Eno then presents Svelte Cartesian, a tool for visual regression testing that helps render all combinations of a component's props for testing purposes.

Recent updates and features in Svelte and SvelteKit, with a focus on Storybook for Svelte Part 3: Testing

Matthias tweeted a 20 line of code i18n library with Svelte and it went semi-viral: https://twitter.com/h_i_g_s_c_h/status/1344223132308164616

Maurice de Beyer on building reliable Svelte applications using Cypress and test-driven development.

A demo on how to setup internationalization in a SvelteKit project using the lightweight library typesafe-i18n.

Using Playwright for end-to-end testing in SvelteKit applications

Jess Sachs joins us to talk about Testing in Svelte

- Svelte, svelte everywhere: Paolo Ricciuti - Testing your Svelte app in an actual browser: Willow/Scott

Curious about Runes? Want to get your questions answered? Here what the team has been up to?

Inlang: a solution for internationalization in SvelteKit projects. The SDK and its tools simplify setup, language negotiation, and content management. This approach automates i18n processes, offering a user-friendly experience for developers and translators.

00:00 Introduction 00:30 Announcements - Svelte Summit 01:10 Runes Primer 13:17 Runes FAQ 19:20 Rune helpers and stores with Hunter 26:26 Runify demo and fine-grained reactivity with Paolo 35:00 The library maintainer’s perspective with Hunter 45:08 Poll: the kinds of applications we make 53:25 Paul proposes Runes be a compiler-based toolchain separated from Svelte, similar to RxJS 1:01:11 Everyone’s impressions of Runes 1:02:48 Tantei-Kun likes the $props Rune 1:07:32 Poll: everyone’s impression of Runes so far

00:00 Introduction 00:47 Changelog - Svelte 4.2.1, SvelteKit 1.25.1 07:51 Quick facts & Announcements - getters and setters explanation by Rich Harris 09:09 This week in Discussions - Updated Svelte 5 preview FAQ, prop typing 36:17 This week in Q&A - simple mocking in SvelteKit and Playwright

Paraglide-JS comes with two main innovations that make Paraglide JS the simplest, most efficient, and typesafe i18n library for SvelteKit. 1. A compiler (sounds familiar?) emits message functions instead of key-value runtime lookup logic. 2. The message functions are tree-shakable, leading to auto optimization by the bundler. Library link: https://inlang.com/m/gerre34r/library-inlang-paraglideJs

Paolo Ricciuti discusses Full Stack Testing, emphasizing its importance in web development.