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Is gulp-istanbul ESM-only? Can you require() it?

Istanbul unit test coverage plugin for gulp.

Last verified Sep 9, 2026 against gulp-istanbul@1.1.3. Markdown · JSON

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

gulp-istanbul ships CommonJS only. require("gulp-istanbul") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "gulp-istanbul" 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("gulp-istanbul") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
  2. From ES modules use the default import: import gulpIstanbul from "gulp-istanbul"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/gulp-istanbul
Latest
1.1.3 (Jan 2, 2018)
Module format
CommonJS
Last CommonJS version
1.1.3
TypeScript types
@types/gulp-istanbul
Node engines
not declared
Weekly downloads
130K
License
MIT

Does gulp-istanbul@1.1.3 actually load? Runtime test results

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

Runtimerequire("gulp-istanbul")import "gulp-istanbul"
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 gulp-istanbul

ES modules (import)

import gulpIstanbul from "gulp-istanbul";

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 gulpIstanbul = require("gulp-istanbul");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (24 versions; the newest 24 shown).

VersionsFormatFirst published
0.1.0 – 1.1.3CommonJSDec 29, 2013

Frequently asked

Is gulp-istanbul ESM-only?

gulp-istanbul@1.1.3 is a CommonJS package. gulp-istanbul ships CommonJS only. require("gulp-istanbul") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "gulp-istanbul" 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 gulp-istanbul with ES module syntax?

Yes. import gulpIstanbul from "gulp-istanbul" 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 gulp-istanbul work in Bun?

Yes. import "gulp-istanbul" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does gulp-istanbul ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/gulp-istanbul".

Links

Other commonjs packages

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