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

Safer Node.js Buffer API

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

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

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

Create a stream that emits events from multiple other streams

process.nextTick but always with args

YAML 1.2 parser and serializer

Use node's fs.realpath, but fall back to the JS implementation if the native one fails

ES2015 `Object.assign()` ponyfill

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

Merge multiple streams into one stream in sequence or parallel.

extend like a boss

Fast deep equal

A stream that emits multiple other streams one after another.

Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

An implementation of WHATWG AbortController interface.

Turn any collection of objects into its own efficient tree or linked list using Symbol