experimental

Enables Svelte and SvelteKit experimental features, and can opt your project into their next pre-release versions.

Usage

npx sv add experimental

What you get

• the selected experimental flags set in your config
• optionally @sveltejs/kit (and your adapter) moved to their next line

Options

versions

Which packages to move to their next pre-release version:

• kit — @sveltejs/kit@next (also bumps your adapter and required peers)

npx sv add experimental="versions:kit"

features

Which experimental flags to enable:

• async — await in components
• remoteFunctions — remote functions
• explicitEnvironmentVariables — explicit environment variables (SvelteKit ^2 only)
• handleRenderingErrors — rendering error boundaries
• forkPreloads — forked preloading

npx sv add experimental="features:async,remoteFunctions"