# Is call-bind ESM-only? Can you require() it?

> call-bind@1.0.9 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Robustly `.call.bind()` a function

Last verified Sep 9, 2026 against call-bind@1.0.9.

call-bind ships CommonJS only. require("call-bind") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "call-bind" 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("call-bind") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
2. From ES modules use the default import: import callBind from "call-bind"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/call-bind

## Facts

- Latest: 1.0.9 (Apr 9, 2026)
- Module format: CommonJS
- Last CommonJS version: 1.0.9
- TypeScript types: @types/call-bind
- Node engines: >= 0.4
- Weekly downloads: 80.7M
- License: MIT

## Runtime test results for call-bind@1.0.9

Installed and executed on Sep 9, 2026 with require("call-bind") from a CommonJS file and import "call-bind" from an ES module.

| Runtime | require("call-bind") | import "call-bind" |
|---|---|---|
| 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 call-bind

ES modules:

```js
import callBind from "call-bind";
```

CommonJS:

```js
const callBind = require("call-bind");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (10 versions; the newest 10 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 1.0.9 | CommonJS | Oct 30, 2020 |

## Frequently asked

**Is call-bind ESM-only?**

call-bind@1.0.9 is a CommonJS package. call-bind ships CommonJS only. require("call-bind") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "call-bind" 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 call-bind with ES module syntax?**

Yes. import callBind from "call-bind" 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 call-bind work in Bun?**

Yes. import "call-bind" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does call-bind ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/call-bind".

## Links

- [call-bind on npm](https://www.npmjs.com/package/call-bind)
- [Source repository](https://github.com/ljharb/call-bind)
- [HTML version](https://canirequire.com/package/call-bind/)
- [JSON version](https://canirequire.com/package/call-bind.json)

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