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Is read-cache ESM-only? Can you require() it?

Reads and caches the entire contents of a file until it is modified

Last verified Sep 9, 2026 against read-cache@1.0.2. Markdown · JSON

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

read-cache ships CommonJS only. require("read-cache") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "read-cache" 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("read-cache") 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 readCache from "read-cache"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for read-cache; declare the module yourself if you need them.
Latest
1.0.2 (Aug 19, 2026)
Module format
CommonJS
Last CommonJS version
1.0.2
TypeScript types
None
Node engines
not declared
Weekly downloads
29.4M
License
MIT

Does read-cache@1.0.2 actually load? Runtime test results

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

Runtimerequire("read-cache")import "read-cache"
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 read-cache

ES modules (import)

import readCache from "read-cache";

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 readCache = require("read-cache");

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 (3 versions; the newest 3 shown).

VersionsFormatFirst published
1.0.0 – 1.0.2CommonJSJan 11, 2016

Frequently asked

Is read-cache ESM-only?

read-cache@1.0.2 is a CommonJS package. read-cache ships CommonJS only. require("read-cache") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "read-cache" 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 read-cache with ES module syntax?

Yes. import readCache from "read-cache" 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 read-cache work in Bun?

Yes. import "read-cache" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does read-cache ship TypeScript types?

No. read-cache ships no type declarations and there is no @types package for it.

Links

Other commonjs packages

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