![]() ![]() But no matter what bundler you use svelte-preprocess always plays the central role when it comes to Typescript integration in Svelte. #Webpack electron livereload how to#We just learned how to use Typescript in Svelte together with Rollup bundler. #Webpack electron livereload code#You can probably add other useful code linting plugins, but that's out of the scope for the article, so I will stop here. Replace your scripts property with the following content. Import svelte from 'rollup-plugin-svelte' Import resolve from serve from 'rollup-plugin-serve' Import livereload from 'rollup-plugin-livereload' Import commonjs from html from 'rollup-plugin-html2' Let's start with a standard vanilla JS Svelte setup and adjust our project there to enable Typescript support. While I achieved decent results with all of them, I will use Rollup here as it has a pretty straight forward setup plus the re-compilation step was the fastest of them all. I've done some experimenting with Rollup, Webpack and Parcel trying to get Svelte to play nice with Typescript. Svelte is still a young framework, but without proper tooling ecosystem surrounding it, I am afraid it might die. Great supporting tools for any framework are important for its future growth and popularity. ![]() And it's not so much about the type safety as about tooling. One of the show stoppers for people who want to start using Svelte was the lack of first class Typescript integration. If you are curious about Snowpack I have written an article on it - Snowpack with Svelte, Typescript and Tailwind CSS is a very pleasant surprise. Bundlers that help you shorten the feedback loop. Since this article was written a few other alternative and faster bundlers popped up. Things in tech move almost at the speed of light. It produces very small and efficient bundles though. Why? Because it needs to re-compile the whole shebang every time you change a file. The official Svelte blog post explains how to get started with Svelte and Typescript quickly, but this article takes a little different approach with an opinionated (improved if you ask me) setup, plus some extra bonus materials.Īlso, Rollup, which I use in the article as a bundler is pretty slow. This article has been updated since the official Typescript support for Svelte was released. With the official Typescript support in Svelte in place we can finally have turtles all the way down! The only things required are proper tools and plugins. Probably the ultimate Svelte.js with Typescript HOWTO there is Im twitter How to use Typescript with Svelte (updated) ![]()
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