Registry / devops / javascript-typescript-langserver

javascript-typescript-langserver

library2.11.3jsnpmunverified

A language server for JavaScript and TypeScript implementing the Language Server Protocol (LSP) using TypeScript's LanguageService. Version 2.11.3 is the latest stable release, with active maintenance by Sourcegraph. It provides features like hover, goto definition, find references, rename, completion, diagnostics, and quick fixes. Key differentiators include support for LSP extensions (files, symbol descriptors, workspace references), optional tracing via OpenTracing/Jaeger, and cluster mode for concurrent workers. It can be used in editors like VS Code, NeoVim, Sublime Text, and Eclipse Che. Releases follow semantic-release and use Prettier for code style.

devops

npm install javascript-typescript-langserver

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · JAVASCRIPT-TYPESCR

javascript-typescript-langserver

devopsjavascriptv2.11.3

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

LanguageServer

✓ import { LanguageServer } from 'javascript-typescript-langserver'

✗ const LanguageServer = require('javascript-typescript-langserver')

The package uses TypeScript and is compiled to CommonJS, so require() works, but ES imports are preferred for type checking.

StdioServer

✓ import { StdioServer } from 'javascript-typescript-langserver/lib/stdio-server'

✗ import { StdioServer } from 'javascript-typescript-langserver'

StdioServer is exported from a submodule, not the main entry point.

createServer

✓ import { createServer } from 'javascript-typescript-langserver/lib/language-server'

✗ const server = require('javascript-typescript-langserver').createServer

createServer is in the language-server module; the main export is LanguageServer class.

Shows how to instantiate and start the language server with a standard LSP connection over STDIO.

import { LanguageServer } from 'javascript-typescript-langserver'; import { createConnection } from 'vscode-languageserver'; import { TextDocuments } from 'vscode-languageserver/node'; const connection = createConnection(process.stdin, process.stdout); const documents = new TextDocuments(TextDocuments.TextDocument); const server = new LanguageServer({ connection, documents }); connection.listen(); documents.listen(connection); process.on('unhandledRejection', (err) => { console.error(err); process.exit(1); });

Debug

Known issues

breakingRenamed from 'javascript-typescript-langserver' to '@sourcegraph/langserver' in v3

fix

Use package '@sourcegraph/langserver' for latest features; for v2 use 'javascript-typescript-langserver'.

affects: >=2.0.0 <3.0.0

gotchaRequires Node.js >=6.0.0, but TypeScript LanguageService may need newer Node for full features

fix

Use Node.js >=12 for TypeScript 4+ support.

affects: >=2.0.0

deprecatedLSP extensions prefixed with 'x-' are deprecated; use standard LSP methods

fix

Update client to use standard LSP requests like textDocument/references instead of xworkspace/references.

affects: >=2.0.0

Errors

Common errors & fixes

Error: Cannot find module 'typescript'

Missing peer dependency 'typescript'

fix

npm install typescript

TypeError: createConnection is not a function

Incorrect import of 'vscode-languageserver' module

fix

Use import { createConnection } from 'vscode-languageserver/node' (for Node.js)

Upgrade

Version history

2.11.3latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/sourcegraph/javascript-typescript-langserver ↗

packagejavascript-typescript-langserver ↗

homepagehttps://github.com/sourcegraph/javascript-typescript-langserver ↗