Overview

The Svelte Language Server is a language server protocol implementation that provides language-specific support for the Svelte framework. It allows editor and addon developers to add features such as diagnostics, auto-complete, and formatting to any editor without reinventing the wheel.

Features

Diagnostic messages: Provides warning and error messages specific to Svelte.
Svelte specific formatting: Supports formatting code using the prettier-plugin-svelte.
HTML support: Includes support for HTML code using the vscode-html-languageservice.
Hover info: Provides information on hover for Svelte code.
Autocompletions: Offers suggestions for code completions.
Emmet support: Integration with Emmet for faster HTML and CSS coding.
Symbols in Outline panel: Displays symbols in the outline panel for easy navigation.
CSS / SCSS / LESS support: Supports CSS, SCSS, and LESS code using the vscode-css-languageservice.
TypeScript / JavaScript support: Provides diagnostics, hover info, formatting, symbols, and code actions for TypeScript and JavaScript using TypeScript.

VS Code

Open VS Code
Go to the extensions panel (Ctrl + Shift + X)
Search for "Svelte Language Server" and click install

Atom

Open Atom
Go to the package manager (Ctrl + Shift + P)
Search for "Svelte Language Server" and click install

(Neo)Vim

Open (Neo)Vim
Install a plugin manager if you don't have one already (e.g., Plug, Vundle)

Add the following line to your vimrc:

Plug 'sveltejs/language-tools', { 'do': 'yarn install --lock-file', 'for': 'svelte' }

Run :PlugInstall to install the plugin

Summary

The Svelte Language Server is a powerful tool for Svelte developers that allows for language-specific features and smart support in any editor. With support for diagnostics, formatting, autocompletions, and more, it enhances the development experience for Svelte projects. By providing a plugin for popular editors like VS Code, Atom, and (Neo)Vim, it ensures easy installation and usage for developers.

Jamesbirtles

Svelte Language Server

Svelte Redux

Svelte Vscode