canirequire › CommonJS › to-regex-range
Is to-regex-range ESM-only? Can you require() it?
Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.
Last verified Sep 9, 2026 against to-regex-range@5.0.1. Markdown · JSON
CommonJS CommonJS — require() works on every Node.js version we test
to-regex-range ships CommonJS only. require("to-regex-range") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0. import "to-regex-range" 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
- require("to-regex-range") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0.
- From ES modules use the default import: import toRegexRange from "to-regex-range"; then destructure. Named imports only work when Node.js can statically detect the exports.
- TypeScript: npm install -D @types/to-regex-range
Does to-regex-range@5.0.1 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("to-regex-range") from a CommonJS file and import "to-regex-range" from an ES module.
| Runtime | require("to-regex-range") | import "to-regex-range" |
|---|---|---|
| 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 to-regex-range
ES modules (import)
import toRegexRange from "to-regex-range";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 toRegexRange = require("to-regex-range");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 (18 versions; the newest 18 shown).
| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 5.0.1 | CommonJS | Aug 7, 2015 |
Frequently asked
Is to-regex-range ESM-only?
to-regex-range@5.0.1 is a CommonJS package. to-regex-range ships CommonJS only. require("to-regex-range") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0. import "to-regex-range" 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 to-regex-range with ES module syntax?
Yes. import toRegexRange from "to-regex-range" 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 to-regex-range work in Bun?
Yes. import "to-regex-range" loaded successfully in Bun 1.4.0 on Sep 9, 2026.
Does to-regex-range ship TypeScript types?
Not bundled. Install the community types with "npm install -D @types/to-regex-range".
Links
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