Returns true if a string has an extglob.

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Safer Node.js Buffer API

ECMAScript AST recursive visitor

A small polyfill for Object.setprototypeof

The Node.js `util.deprecate()` function with browser support

Callback wrapping utility

deterministic `JSON.stringify()` - a faster version of substack's json-stable-strigify without jsonify

Allows users to use generators in order to write common functions that can be both sync or async.

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

YAML 1.2 parser and serializer

ES2015 `Object.assign()` ponyfill

[](https://travis-ci.org/stefanpenner/get-caller-file) [](https://ci.a

extend like a boss

Constant-time comparison of Buffers

Merge multiple streams into one stream in sequence or parallel.

return list of CallSite objects from a captured stacktrace

Buffers events from a stream until you are ready to handle them.

Fast (and loose) selective `process.env` replacer using js-tokens instead of an AST