Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

A better forEach

Implementation of Function.prototype.bind

An ES2015 spec-compliant `Function.prototype.name` shim

Object.prototype.hasOwnProperty.call shortcut

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Determine if a value is an ES6 Symbol or not.

Array#isArray for older browsers

string representations of objects in node and the browser

ES2017 spec-compliant Object.entries shim.

The semantic version parser used by npm.

Airbnb's base JS ESLint config, following our styleguide

Import with sanity.

human-readable TAP summarizer

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 ca

Merge multiple istanbul coverage reports into one

Delightful JavaScript Testing.

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

Ensure that when you `npm publish`, the "latest" tag is only set for the truly latest version.

tap-producing test harness for node and browsers