Create simple HTTP ETags

A stream that emits multiple other streams one after another.

Returns true if a string has an extglob.

ES2015 `Object.assign()` ponyfill

Node.js Buffer API, for the browser

Require module from string

Deprecate all the things

Recursively iterates over specified directory, require()'ing each file, and returning a nested hash structure containing those modules.

HTTP methods that node supports

Get the native type of a value.

The Lodash method `_.merge` exported as a module.

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

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

HTTP response freshness testing

Run a function exactly one time

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

Manipulate the HTTP Vary header

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

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.

Make your own error types!