Safer Node.js Buffer API

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

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

process.nextTick but always with args

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

ES2015 `Object.assign()` ponyfill

YAML 1.2 parser and serializer

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

Merge multiple streams into one stream in sequence or parallel.

A stream that emits multiple other streams one after another.

Create a stream that emits events from multiple other streams

extend like a boss

Support for representing 64-bit integers in JavaScript

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

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

Escape string for use in HTML

simplified stream construction

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

Constant-time comparison of Buffers