Fast, unopinionated, minimalist web framework

Merge multiple objects into one, optionally creating a new cloned object. Similar to the jQuery.extend but more flexible. Works in Node.js and the browser.

Tools for working with sourceMappingURL comments.

Regular expression for matching ANSI escape codes

Object.prototype.hasOwnProperty.call shortcut

Plain color conversion functions

Try to guess if your terminal supports unicode

ProseMirror document transformations

Rope-based persistent sequence type

Generates and consumes source maps

A deep deletion module for node (like `rm -rf`)

Maps lines and columns to character offsets and back.

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

Find and load configuration from a package.json property, rc file, or CommonJS module

Extra assertions on top of node's assert module

Convert a string of words to a JavaScript identifier

Expand POSIX bracket expressions (character classes) in glob patterns.

Provides StructuredSource and functionality for converting range and loc vice versa.

Map `visit` over an array of objects.

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

Get a KeyboardEvent.key-style string from an event

Recursively mkdir, like `mkdir -p`

Iterate over the own enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js.

Check if a buffer contains valid UTF-8