Require constants across node and the browser

Node.js os.homedir polyfill for older versions of node.js.

Long timeout makes it possible to have a timeout or interval that is longer than 24.8 days (2^31-1 milliseconds).

`util.inspect` with additional type information

Deprecate all the things

Ensure that a stream is flowing data without mutating it

HPACK implementation

[](https://npmjs.org/package/stream-combiner) [](https://travis-ci.org/dominictarr/stream-combiner)

A promise based, dynamic priority queue runner, with concurrency limiting.

Check if a file is executable

Returns `true` if the path appears to be relative.

Append the contents of one stream onto another.

Get an event when you're being sent data or asked for it.

Fast JavaScript array sorting by implementing Python's Timsort algorithm

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

Test whether an object looks like a promises-a+ promise

Utility for normalizing a numeric range, with a wrapping function useful for polar coordinates

Expand placeholders in a template string

Use round, rem and mod functions in CSS

Detect if your code is running on an AWS Lambda server