An XML builder for node.js

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

Make your own error types!

Run a function exactly one time

Wrap those words. Show them at what columns to start and stop.

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

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

Returns true if a value is a plain object, array or function.

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

Querystringify - Small, simple but powerful query string parser.

Detect whether or not an object is a Typed Array

Require constants across node and the browser

Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.

The lodash method `_.isNumber` exported as a module.

Promisify a callback-based function

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

Port of jQuery.extend for node.js and the browser

Callback wrapping utility

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

Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.