Question 1

How do I set up prettier-plugin-svelte in VS Code?

Accepted Answer

Install the Svelte for VS Code extension for basic formatting, or use the official Prettier extension with a .prettierrc file that includes the plugin and overrides for *.svelte files. You may need to configure prettier.documentSelectors in settings.json for full control.

Question 2

What's the difference between prettier-plugin-svelte and using Prettier's HTML parser for Svelte files?

Accepted Answer

prettier-plugin-svelte understands Svelte-specific syntax like {#each} blocks and embedded expressions, while the HTML parser would mishandle them. This plugin ensures correct, consistent formatting across all Svelte component parts without manual workarounds.

Question 3

How can I use prettier-plugin-svelte with Tailwind CSS?

Accepted Answer

Add prettier-plugin-tailwindcss to your .prettierrc plugins array after prettier-plugin-svelte, as per the compatibility notes. You might also need to adjust VS Code settings for document selectors to ensure both plugins work together seamlessly.

Question 4

Why does the plugin format inline elements with weird spacing or line breaks?

Accepted Answer

This is due to HTML whitespace sensitivity, where inline elements like spans affect rendering. The plugin treats Svelte components as inline by default to preserve layout. You can adjust this using Prettier's htmlWhitespaceSensitivity option in your configuration.

Question 5

How to handle version upgrades when moving to Svelte 5?

Accepted Answer

Upgrade to Svelte 5 first, then install prettier-plugin-svelte@4, as version 4 only supports Svelte 5. Note that this version removes the svelteStrictMode option and has other breaking changes, so check the migration guide for details.

Question 6

Can I use prettier-plugin-svelte without a build step in the browser?

Accepted Answer

No, browser usage is semi-supported and requires a bundler like Vite to package the plugin with prettier/standalone. Direct usage without a build step is not well-supported, limiting its use in simple client-side applications.

prettier-plugin-svelte

What is prettier-plugin-svelte?

Overview

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Pros & Cons

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Frequently Asked Questions