Registry / serialization / browserify-bignum

browserify-bignum

library1.3.0-2jsnpmunverified

This library provides a JavaScript implementation of arbitrary-precision arithmetic, specifically designed to be compatible with Node.js's `node-bignum` API while being usable in browser environments via Browserify. It is based on `bignumber.js` by MikeMcl. The current stable version is 1.3.0-2, released approximately nine years ago. It differs from the original `node-bignum` by explicitly *omitting* several key methods, including `prime`, `toNumber`, bitwise operations (`and`, `or`, `xor`), modular inverse, random number generation, primality testing, root, shift operations, GCD, and Jacobi symbol. This makes it suitable only for specific use cases that do not require these advanced features, such as its original purpose for `node-srp`. Given its age and the explicit statement about unimplemented features, active development is not ongoing, and it targets older browserify workflows rather than modern ESM or bundler setups.

serialization

npm install browserify-bignum

github ↗package ↗

INSTALL

IMPORT

SIG · BROWSERIFY-BIGNUM

browserify-bignum

serializationjavascriptv1.3.0-2

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

BigNumber

✓ const BigNumber = require('browserify-bignum');

✗ import { BigNumber } from 'browserify-bignum';

Primarily designed for CommonJS (`require`) and Browserify. Does not provide native ESM exports.

BigNumber (instance)

✓ const n = BigNumber('12345');

✗ const n = new BigNumber('12345');

The library typically uses the constructor as a function (e.g., `BigNumber('...')`) rather than `new BigNumber(...)`, consistent with its `node-bignum` inspiration.

Demonstrates how to import the BigNumber constructor, create instances from strings, and perform basic arithmetic and comparison operations.

const BigNumber = require('browserify-bignum'); // Create a new BigNumber instance from a string const a = BigNumber('987654321098765432109876543210'); const b = BigNumber('123456789012345678901234567890'); // Perform some arithmetic operations const sum = a.add(b); const product = a.mul(b); const quotient = a.div(BigNumber('3')); // Divide by BigNumber '3' console.log('BigNumber a:', a.toString()); console.log('BigNumber b:', b.toString()); console.log('Sum (a + b):', sum.toString()); console.log('Product (a * b):', product.toString()); console.log('Quotient (a / 3):', quotient.toString()); // Example of comparison if (a.cmp(b) > 0) { console.log('a is greater than b'); }

Debug

Known issues

breakingMany methods available in the original `node-bignum` library are explicitly *not* implemented in `browserify-bignum`, including `prime`, `toNumber`, bitwise operations (`and`, `or`, `xor`), `invertm`, `rand`, `probPrime`, `root`, `shiftLeft`, `shiftRight`, `gcd`, and `jacobi`. Direct migration from `node-bignum` will result in runtime errors if these methods are used.

fix

Review the list of unsupported methods in the README. If these methods are critical, consider using `bignumber.js` directly or a different modern arbitrary-precision library that supports them.

affects: >=1.0.0

gotchaThe package is effectively abandoned, with the last commit on its GitHub repository over nine years ago. It is not actively maintained, meaning bug fixes, security updates, or new features are highly unlikely.

fix

For new projects, consider modern, actively maintained alternatives like `bignumber.js`, `decimal.js`, or native `BigInt` (if integer-only operations are sufficient).

affects: >=1.0.0

gotchaThis library is designed for the Browserify ecosystem. Using it directly in modern Node.js ESM projects or with contemporary bundlers (Webpack, Rollup, Vite) without proper CommonJS compatibility layers may lead to issues or require additional configuration.

fix

Ensure your build setup correctly handles CommonJS modules if integrating into a modern frontend or backend project. For browsers, it's intended to be bundled via Browserify.

affects: >=1.0.0

gotchaDue to its age and lack of maintenance, the library might have unaddressed security vulnerabilities or rely on outdated dependencies. Using it in production environments without thorough security review is not recommended.

fix

Audit the source code and its (potentially transitive) dependencies for known vulnerabilities. Consider sandboxing or migrating to a more secure, maintained library.

affects: >=1.0.0

Errors

Common errors & fixes

TypeError: BigNumber.prime is not a function

Attempting to use a method (`.prime()`, `.toNumber()`, `.and()`, etc.) that is present in `node-bignum` but explicitly omitted in `browserify-bignum`.

fix

Consult the `browserify-bignum` README for the list of unimplemented methods. If the functionality is required, migrate to `bignumber.js` or another library.

ReferenceError: require is not defined

Attempting to use `require('browserify-bignum')` directly in a browser environment without being processed by Browserify or another CommonJS-aware bundler.

fix

Ensure your browser-side code is bundled using Browserify. If using modern bundlers (Webpack/Rollup/Vite), confirm they are configured to correctly handle CommonJS modules.

Error: Cannot find module 'browserify-bignum'

The package is not installed, or the module resolution path is incorrect in a CommonJS environment (e.g., Node.js).

fix

Install the package via npm: `npm install browserify-bignum`. Verify your module resolution settings if using a custom environment.

Upgrade

Version history

1.3.0-2latest on npm

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Dependencies

No dependency data recorded yet.

Agent activity

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Resources

githubhttps://github.com/innoying/browserify-bignum ↗

packagehttps://www.npmjs.com/package/browserify-bignum ↗