canirequire › CommonJS › toformat
Is toformat ESM-only? Can you require() it?
Adds a `toFormat` instance method to decimal.js or big.js
Last verified Sep 9, 2026 against toformat@2.0.0. Markdown · JSON
CommonJS CommonJS — require() works on every Node.js version we test
toformat ships CommonJS only. require("toformat") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "toformat" 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("toformat") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
- From ES modules use the default import: import toformat from "toformat"; then destructure. Named imports only work when Node.js can statically detect the exports.
- TypeScript: no types are available for toformat; declare the module yourself if you need them.
Does toformat@2.0.0 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("toformat") from a CommonJS file and import "toformat" from an ES module.
| Runtime | require("toformat") | import "toformat" |
|---|---|---|
| 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 toformat
ES modules (import)
import toformat from "toformat";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 toformat = require("toformat");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 (2 versions; the newest 2 shown).
| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 2.0.0 | CommonJS | Feb 10, 2016 |
Frequently asked
Is toformat ESM-only?
toformat@2.0.0 is a CommonJS package. toformat ships CommonJS only. require("toformat") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "toformat" 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 toformat with ES module syntax?
Yes. import toformat from "toformat" 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 toformat work in Bun?
Yes. import "toformat" loaded successfully in Bun 1.4.0 on Sep 9, 2026.
Does toformat ship TypeScript types?
No. toformat ships no type declarations and there is no @types package for it.
Links
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