Replaces position-based key `i` with `entry === null ? 'ellipsis-' + i : entry` so DOM reconciliation is stable when the window shifts (Decision Queue #2). The index-based key was masking a duplicate-push bug in pageWindow: when windowStart === first+1 or windowEnd === last-1, the loop already included that number, causing Svelte to throw `each_key_duplicate` once stable keys are used. Fixed the bridge-page conditions to use first+2 / last-2 thresholds so the loop and the bridge branches never push the same page number. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
sv
Everything you need to build a Svelte project, powered by sv.
Creating a project
If you're seeing this, you've probably already done this step. Congrats!
# create a new project in the current directory
npx sv create
# create a new project in my-app
npx sv create my-app
Developing
Once you've created a project and installed dependencies with npm install (or pnpm install or yarn), start a development server:
npm run dev
# or start the server and open the app in a new browser tab
npm run dev -- --open
Building
To create a production version of your app:
npm run build
You can preview the production build with npm run preview.
To deploy your app, you may need to install an adapter for your target environment.