| name | typescript-lsp |
| description | TypeScript language server providing type checking, code intelligence, and LSP diagnostics for .ts, .tsx, .js, .jsx, .mts, .cts, .mjs, .cjs files. Use when working with TypeScript or JavaScript code that needs type checking, autocomplete, error detection, refactoring support, or code navigation. |
TypeScript LSP
TypeScript/JavaScript language server integration providing comprehensive code intelligence through typescript-language-server.
Capabilities
- Type checking: Static analysis of TypeScript and JavaScript types
- Code intelligence: Autocomplete, go-to-definition, find references, rename symbols
- Error detection: Real-time diagnostics for type errors, syntax issues, and semantic problems
- Refactoring: Extract function/variable, organize imports, quick fixes
- Supported extensions:
.ts, .tsx, .js, .jsx, .mts, .cts, .mjs, .cjs
Installation
Install TypeScript language server and TypeScript compiler:
npm install -g typescript-language-server typescript
Or with yarn:
yarn global add typescript-language-server typescript
Verify installation:
typescript-language-server --version
tsc --version
Usage
The language server runs automatically in LSP-compatible editors. For manual type checking:
tsc --noEmit
Compile TypeScript files:
tsc src/index.ts
Watch mode for continuous type checking:
tsc --watch --noEmit
Configuration
Create tsconfig.json in project root:
{
"compilerOptions": {
"target": "ES2020",
"module": "ESNext",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"resolveJsonModule": true,
"moduleResolution": "node"
},
"include": ["src/**/*"],
"exclude": ["node_modules", "dist"]
}
Integration Pattern
When editing TypeScript/JavaScript code:
- Run
tsc --noEmit after significant changes
- Address type errors before committing
- Use
tsc --watch during active development
- Leverage quick fixes for common issues
Common Flags
--noEmit: Type check only, no output files--strict: Enable all strict type checking options--watch: Watch mode for continuous compilation--project <path>: Specify tsconfig.json location--pretty: Stylize errors and messages
More Information
