canirequire › CommonJS › has-symbols
Is has-symbols ESM-only? Can you require() it?
Determine if the JS environment has Symbol support. Supports spec, or shams.
Last verified Sep 9, 2026 against has-symbols@1.1.0. JSON
CommonJS CommonJS — require() works on every Node.js version
has-symbols ships CommonJS only. require("has-symbols") works everywhere. import "has-symbols" 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.
Does has-symbols@1.1.0 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("has-symbols") from a CommonJS file and import "has-symbols" from an ES module.
| Runtime | require("has-symbols") | import "has-symbols" |
|---|---|---|
| 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 has-symbols
ES modules (import)
import hasSymbols from "has-symbols";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 hasSymbols = require("has-symbols");Module format by version
Derived from the type, main and exports fields of every stable release on npm (5 versions; the newest 5 shown).
| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 1.1.0 | CommonJS | Sep 19, 2016 |
Frequently asked
Is has-symbols ESM-only?
has-symbols@1.1.0 is a CommonJS package. has-symbols ships CommonJS only. require("has-symbols") works everywhere. import "has-symbols" 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 has-symbols with ES module syntax?
Yes. import hasSymbols from "has-symbols" 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 has-symbols work in Bun?
Yes. import "has-symbols" loaded successfully in Bun 1.4 on Sep 9, 2026.
Does has-symbols ship TypeScript types?
Yes. has-symbols bundles its own type declarations; no @types package is needed.
Links
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