# Is @oclif/command ESM-only? Can you require() it?

> @oclif/command@1.8.36 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

oclif base command

Last verified Sep 9, 2026 against @oclif/command@1.8.36.

@oclif/command ships CommonJS only. require("@oclif/command") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "@oclif/command" 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.

**Deprecated:** Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.

## What to do

1. require("@oclif/command") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0.
2. From ES modules use the default import: import command from "@oclif/command"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.
4. This package is deprecated: Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.

## Facts

- Latest: 1.8.36 (Aug 19, 2023)
- Module format: CommonJS
- Last CommonJS version: 1.8.36
- TypeScript types: bundled
- Node engines: >=12.0.0
- Weekly downloads: 973K
- License: MIT

## Runtime test results for @oclif/command@1.8.36

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

| Runtime | require("@oclif/command") | import "@oclif/command" |
|---|---|---|
| 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 @oclif/command

ES modules:

```js
import command from "@oclif/command";
```

CommonJS:

```js
const command = require("@oclif/command");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (106 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 1.4.35 – 1.8.36 | CommonJS | Jul 19, 2018 |

## Frequently asked

**Is @oclif/command ESM-only?**

@oclif/command@1.8.36 is a CommonJS package. @oclif/command ships CommonJS only. require("@oclif/command") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "@oclif/command" 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 @oclif/command with ES module syntax?**

Yes. import command from "@oclif/command" 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 @oclif/command work in Bun?**

Yes. import "@oclif/command" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does @oclif/command ship TypeScript types?**

Yes. @oclif/command bundles its own type declarations; no @types package is needed.

## Links

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

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