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Is typed-array-byte-length ESM-only? Can you require() it?

Robustly get the byte length of a Typed Array

Last verified Sep 9, 2026 against typed-array-byte-length@1.0.3. Markdown · JSON

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

typed-array-byte-length ships CommonJS only. require("typed-array-byte-length") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "typed-array-byte-length" 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("typed-array-byte-length") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
  2. From ES modules use the default import: import typedArrayByteLength from "typed-array-byte-length"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: types are bundled; install nothing extra.
Latest
1.0.3 (Dec 17, 2024)
Module format
CommonJS
Last CommonJS version
1.0.3
TypeScript types
Bundled
Node engines
>= 0.4
Weekly downloads
43.1M
License
MIT

Does typed-array-byte-length@1.0.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("typed-array-byte-length") from a CommonJS file and import "typed-array-byte-length" from an ES module.

Runtimerequire("typed-array-byte-length")import "typed-array-byte-length"
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 typed-array-byte-length

ES modules (import)

import typedArrayByteLength from "typed-array-byte-length";

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 typedArrayByteLength = require("typed-array-byte-length");

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 (4 versions; the newest 4 shown).

VersionsFormatFirst published
1.0.0 – 1.0.3CommonJSJul 14, 2023

Frequently asked

Is typed-array-byte-length ESM-only?

typed-array-byte-length@1.0.3 is a CommonJS package. typed-array-byte-length ships CommonJS only. require("typed-array-byte-length") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "typed-array-byte-length" 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 typed-array-byte-length with ES module syntax?

Yes. import typedArrayByteLength from "typed-array-byte-length" 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 typed-array-byte-length work in Bun?

Yes. import "typed-array-byte-length" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does typed-array-byte-length ship TypeScript types?

Yes. typed-array-byte-length bundles its own type declarations; no @types package is needed.

Links

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