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Is stop-iteration-iterator ESM-only? Can you require() it?

Firefox 17-26 iterators throw a StopIteration object to indicate "done". This normalizes it.

Last verified Sep 9, 2026 against stop-iteration-iterator@1.1.0. JSON

CommonJS CommonJS — require() works on every Node.js version

stop-iteration-iterator ships CommonJS only. require("stop-iteration-iterator") works everywhere. import "stop-iteration-iterator" 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.

Latest
1.1.0 (Dec 13, 2024)
Module format
CommonJS
Last CommonJS version
1.1.0
TypeScript types
Bundled
Node engines
>= 0.4
Weekly downloads
69.2M
License
MIT

Does stop-iteration-iterator@1.1.0 actually load? Runtime test results

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

Runtimerequire("stop-iteration-iterator")import "stop-iteration-iterator"
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✓ works✓ works

How to import stop-iteration-iterator

ES modules (import)

import stopIterationIterator from "stop-iteration-iterator";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const stopIterationIterator = require("stop-iteration-iterator");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (2 versions; the newest 2 shown).

VersionsFormatFirst published
1.0.0 – 1.1.0CommonJSJan 13, 2023

Frequently asked

Is stop-iteration-iterator ESM-only?

stop-iteration-iterator@1.1.0 is a CommonJS package. stop-iteration-iterator ships CommonJS only. require("stop-iteration-iterator") works everywhere. import "stop-iteration-iterator" 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 stop-iteration-iterator with ES module syntax?

Yes. import stopIterationIterator from "stop-iteration-iterator" 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 stop-iteration-iterator work in Bun?

Yes. import "stop-iteration-iterator" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does stop-iteration-iterator ship TypeScript types?

Yes. stop-iteration-iterator bundles its own type declarations; no @types package is needed.

Links

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