metamask/number-to-bn

Big number implementation in pure javascript

A library for arbitrary-precision decimal and non-decimal arithmetic

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

takes json-cov output into stdin and POSTs to coveralls.io

Run scripts that set and use environment variables across platforms

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale

simple, flexible, fun test framework

Automatically install pre-commit hooks for your npm modules.

A deep deletion module for node (like `rm -rf`)

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

simple browser testing

A simple module for handling Ethereum units (e.g. 'ether', 'wei', etc...)

A light-weight, highly optimised JS utility for Ethereum