# Is @angular/language-service ESM-only? Can you require() it?

> @angular/language-service@22.1.5 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Angular - language services

Last verified Sep 9, 2026 against @angular/language-service@22.1.5.

@angular/language-service ships CommonJS only. require("@angular/language-service") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^22.22.3 || ^24.15.0 || >=26.0.0. import "@angular/language-service" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

## What to do

1. require("@angular/language-service") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^22.22.3 || ^24.15.0 || >=26.0.0.
2. From ES modules use the default import: import languageService from "@angular/language-service"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 22.1.5 (Sep 3, 2026)
- Module format: CommonJS
- Last CommonJS version: 22.1.5
- TypeScript types: bundled
- Node engines: ^22.22.3 || ^24.15.0 || >=26.0.0
- Weekly downloads: 1.3M
- License: MIT

## Runtime test results for @angular/language-service@22.1.5

Installed and executed on Sep 9, 2026 with require("@angular/language-service") from a CommonJS file and import "@angular/language-service" from an ES module.

| Runtime | require("@angular/language-service") | import "@angular/language-service" |
|---|---|---|
| Node.js 18 | works | works |
| Node.js 20 | works | works |
| Node.js 22 | works | works |
| Node.js 24 | works | works |
| Node.js 26 | works | works |
| Bun 1.4.0 | works | works |

## How to import @angular/language-service

ES modules:

```js
import languageService from "@angular/language-service";
```

CommonJS:

```js
const languageService = require("@angular/language-service");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (561 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 20.3.26 – 22.1.5 | CommonJS | Jul 8, 2026 |

## Frequently asked

**Is @angular/language-service ESM-only?**

@angular/language-service@22.1.5 is a CommonJS package. @angular/language-service ships CommonJS only. require("@angular/language-service") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^22.22.3 || ^24.15.0 || >=26.0.0. import "@angular/language-service" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

**Can I import @angular/language-service with ES module syntax?**

Yes. import languageService from "@angular/language-service" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

**Does @angular/language-service work in Bun?**

Yes. import "@angular/language-service" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does @angular/language-service ship TypeScript types?**

Yes. @angular/language-service bundles its own type declarations; no @types package is needed.

## Links

- [@angular/language-service on npm](https://www.npmjs.com/package/@angular/language-service)
- [Source repository](https://github.com/angular/angular)
- [HTML version](https://canirequire.com/package/@angular/language-service/)
- [JSON version](https://canirequire.com/package/@angular/language-service.json)

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